Tire Pressure for 2007 Cadillac STS Base Model

2007 Cadillac STS Base Model origial equipment (OE), optional and plus tire sizes. Click on tire size set to see its recommended tire pressure.

F: 235/50R18 - R: 255/45R18
2007 Cadillac STS Base Model Tire Pressure
235/50R18
Front Tire Pressure

30 psi

2.07 bar
207 kPa
255/45R18
Rear Tire Pressure

30 psi

2.07 bar
207 kPa

2007 Cadillac STS Base Model has original equipment tire size of 235/50R18 for front tires and original equipment tire size of 255/45R18 for rear tires.

Recommended tire pressure for 2007 Cadillac STS Base Model front tires is 30 psi, and recommended tire pressure for 2007 Cadillac STS Base Model rear tires is 30 psi.

2007 Cadillac STS Base Model tire pressure range depends on its tire load carrying capacity, so make sure to check tire load inflation chart for 2007 Cadillac STS Base Model tire load indexes, weights and recommended psi.

Tire pressure for 2007 Cadillac STS Base Model is affected by changes in atmospheric temperature. Use tire inflation temperature chart below to identify tire pressure fluctuation with changes in temperature in order to adjust tire pressure in 2007 Cadillac STS Base Model tires and maintain tire inflation at recommended levels.

Change in Temperature represents the difference between current atmospheric temperature and the one used to set your vehicle's recommended tire pressure. Adjusted Pressure is the actual tire pressure at current temperature change. Pressure Difference shows by how much psi your tires are overinflated or underinflated.

Tire Pressure Temperature Chart | Tire Pressure Temperature Calculator

Front Tire: 235/50R18
Recommended Tire Pressure: 30 psi
Change in Temperature Adjusted Tire Pressure Pressure Difference
+100 °F 38.1 psi +8.1 psi
+95 °F 37.7 psi +7.7 psi
+90 °F 37.29 psi +7.29 psi
+85 °F 36.89 psi +6.89 psi
+80 °F 36.48 psi +6.48 psi
+75 °F 36.08 psi +6.08 psi
+70 °F 35.67 psi +5.67 psi
+65 °F 35.27 psi +5.27 psi
+60 °F 34.86 psi +4.86 psi
+55 °F 34.46 psi +4.46 psi
+50 °F 34.05 psi +4.05 psi
+45 °F 33.65 psi +3.65 psi
+40 °F 33.24 psi +3.24 psi
+35 °F 32.84 psi +2.84 psi
+30 °F 32.43 psi +2.43 psi
+25 °F 32.03 psi +2.03 psi
+20 °F 31.62 psi +1.62 psi
+15 °F 31.22 psi +1.22 psi
+10 °F 30.81 psi +0.81 psi
+5 °F 30.41 psi +0.41 psi
+0 °F 30 psi 0 psi
-5 °F 29.6 psi -0.4 psi
-10 °F 29.19 psi -0.81 psi
-15 °F 28.79 psi -1.21 psi
-20 °F 28.38 psi -1.62 psi
-25 °F 27.98 psi -2.02 psi
-30 °F 27.57 psi -2.43 psi
-35 °F 27.17 psi -2.83 psi
-40 °F 26.76 psi -3.24 psi
-45 °F 26.36 psi -3.64 psi
-50 °F 25.95 psi -4.05 psi
-55 °F 25.55 psi -4.45 psi
-60 °F 25.14 psi -4.86 psi
-65 °F 24.74 psi -5.26 psi
-70 °F 24.33 psi -5.67 psi
-75 °F 23.93 psi -6.07 psi
-80 °F 23.52 psi -6.48 psi
-85 °F 23.12 psi -6.88 psi
-90 °F 22.71 psi -7.29 psi
-95 °F 22.31 psi -7.69 psi
-100 °F 21.9 psi -8.1 psi
Rear Tire: 255/45R18
Recommended Tire Pressure: 30 psi
Change in Temperature Adjusted Tire Pressure Pressure Difference
+100 °F 38.1 psi +8.1 psi
+95 °F 37.7 psi +7.7 psi
+90 °F 37.29 psi +7.29 psi
+85 °F 36.89 psi +6.89 psi
+80 °F 36.48 psi +6.48 psi
+75 °F 36.08 psi +6.08 psi
+70 °F 35.67 psi +5.67 psi
+65 °F 35.27 psi +5.27 psi
+60 °F 34.86 psi +4.86 psi
+55 °F 34.46 psi +4.46 psi
+50 °F 34.05 psi +4.05 psi
+45 °F 33.65 psi +3.65 psi
+40 °F 33.24 psi +3.24 psi
+35 °F 32.84 psi +2.84 psi
+30 °F 32.43 psi +2.43 psi
+25 °F 32.03 psi +2.03 psi
+20 °F 31.62 psi +1.62 psi
+15 °F 31.22 psi +1.22 psi
+10 °F 30.81 psi +0.81 psi
+5 °F 30.41 psi +0.41 psi
+0 °F 30 psi 0 psi
-5 °F 29.6 psi -0.4 psi
-10 °F 29.19 psi -0.81 psi
-15 °F 28.79 psi -1.21 psi
-20 °F 28.38 psi -1.62 psi
-25 °F 27.98 psi -2.02 psi
-30 °F 27.57 psi -2.43 psi
-35 °F 27.17 psi -2.83 psi
-40 °F 26.76 psi -3.24 psi
-45 °F 26.36 psi -3.64 psi
-50 °F 25.95 psi -4.05 psi
-55 °F 25.55 psi -4.45 psi
-60 °F 25.14 psi -4.86 psi
-65 °F 24.74 psi -5.26 psi
-70 °F 24.33 psi -5.67 psi
-75 °F 23.93 psi -6.07 psi
-80 °F 23.52 psi -6.48 psi
-85 °F 23.12 psi -6.88 psi
-90 °F 22.71 psi -7.29 psi
-95 °F 22.31 psi -7.69 psi
-100 °F 21.9 psi -8.1 psi
Front Tire: 235/50R18
Recommended Tire Pressure: 30 psi
Change in Temperature Adjusted Tire Pressure Pressure Difference
+30 °C 34.37 psi +4.37 psi
+29 °C 34.23 psi +4.23 psi
+28 °C 34.08 psi +4.08 psi
+27 °C 33.94 psi +3.94 psi
+26 °C 33.79 psi +3.79 psi
+25 °C 33.65 psi +3.65 psi
+24 °C 33.5 psi +3.5 psi
+23 °C 33.35 psi +3.35 psi
+22 °C 33.21 psi +3.21 psi
+21 °C 33.06 psi +3.06 psi
+20 °C 32.92 psi +2.92 psi
+19 °C 32.77 psi +2.77 psi
+18 °C 32.62 psi +2.62 psi
+17 °C 32.48 psi +2.48 psi
+16 °C 32.33 psi +2.33 psi
+15 °C 32.19 psi +2.19 psi
+14 °C 32.04 psi +2.04 psi
+13 °C 31.9 psi +1.9 psi
+12 °C 31.75 psi +1.75 psi
+11 °C 31.6 psi +1.6 psi
+10 °C 31.46 psi +1.46 psi
+9 °C 31.31 psi +1.31 psi
+8 °C 31.17 psi +1.17 psi
+7 °C 31.02 psi +1.02 psi
+6 °C 30.87 psi +0.87 psi
+5 °C 30.73 psi +0.73 psi
+4 °C 30.58 psi +0.58 psi
+3 °C 30.44 psi +0.44 psi
+2 °C 30.29 psi +0.29 psi
+1 °C 30.15 psi +0.15 psi
+0 °C 30 psi 0 psi
-1 °C 29.85 psi -0.15 psi
-2 °C 29.71 psi -0.29 psi
-3 °C 29.56 psi -0.44 psi
-4 °C 29.42 psi -0.58 psi
-5 °C 29.27 psi -0.73 psi
-6 °C 29.13 psi -0.87 psi
-7 °C 28.98 psi -1.02 psi
-8 °C 28.83 psi -1.17 psi
-9 °C 28.69 psi -1.31 psi
-10 °C 28.54 psi -1.46 psi
-11 °C 28.4 psi -1.6 psi
-12 °C 28.25 psi -1.75 psi
-13 °C 28.1 psi -1.9 psi
-14 °C 27.96 psi -2.04 psi
-15 °C 27.81 psi -2.19 psi
-16 °C 27.67 psi -2.33 psi
-17 °C 27.52 psi -2.48 psi
-18 °C 27.38 psi -2.62 psi
-19 °C 27.23 psi -2.77 psi
-20 °C 27.08 psi -2.92 psi
-21 °C 26.94 psi -3.06 psi
-22 °C 26.79 psi -3.21 psi
-23 °C 26.65 psi -3.35 psi
-24 °C 26.5 psi -3.5 psi
-25 °C 26.36 psi -3.64 psi
-26 °C 26.21 psi -3.79 psi
-27 °C 26.06 psi -3.94 psi
-28 °C 25.92 psi -4.08 psi
-29 °C 25.77 psi -4.23 psi
-30 °C 25.63 psi -4.37 psi
Rear Tire: 255/45R18
Recommended Tire Pressure: 30 psi
Change in Temperature Adjusted Tire Pressure Pressure Difference
+30 °C 34.37 psi +4.37 psi
+29 °C 34.23 psi +4.23 psi
+28 °C 34.08 psi +4.08 psi
+27 °C 33.94 psi +3.94 psi
+26 °C 33.79 psi +3.79 psi
+25 °C 33.65 psi +3.65 psi
+24 °C 33.5 psi +3.5 psi
+23 °C 33.35 psi +3.35 psi
+22 °C 33.21 psi +3.21 psi
+21 °C 33.06 psi +3.06 psi
+20 °C 32.92 psi +2.92 psi
+19 °C 32.77 psi +2.77 psi
+18 °C 32.62 psi +2.62 psi
+17 °C 32.48 psi +2.48 psi
+16 °C 32.33 psi +2.33 psi
+15 °C 32.19 psi +2.19 psi
+14 °C 32.04 psi +2.04 psi
+13 °C 31.9 psi +1.9 psi
+12 °C 31.75 psi +1.75 psi
+11 °C 31.6 psi +1.6 psi
+10 °C 31.46 psi +1.46 psi
+9 °C 31.31 psi +1.31 psi
+8 °C 31.17 psi +1.17 psi
+7 °C 31.02 psi +1.02 psi
+6 °C 30.87 psi +0.87 psi
+5 °C 30.73 psi +0.73 psi
+4 °C 30.58 psi +0.58 psi
+3 °C 30.44 psi +0.44 psi
+2 °C 30.29 psi +0.29 psi
+1 °C 30.15 psi +0.15 psi
+0 °C 30 psi 0 psi
-1 °C 29.85 psi -0.15 psi
-2 °C 29.71 psi -0.29 psi
-3 °C 29.56 psi -0.44 psi
-4 °C 29.42 psi -0.58 psi
-5 °C 29.27 psi -0.73 psi
-6 °C 29.13 psi -0.87 psi
-7 °C 28.98 psi -1.02 psi
-8 °C 28.83 psi -1.17 psi
-9 °C 28.69 psi -1.31 psi
-10 °C 28.54 psi -1.46 psi
-11 °C 28.4 psi -1.6 psi
-12 °C 28.25 psi -1.75 psi
-13 °C 28.1 psi -1.9 psi
-14 °C 27.96 psi -2.04 psi
-15 °C 27.81 psi -2.19 psi
-16 °C 27.67 psi -2.33 psi
-17 °C 27.52 psi -2.48 psi
-18 °C 27.38 psi -2.62 psi
-19 °C 27.23 psi -2.77 psi
-20 °C 27.08 psi -2.92 psi
-21 °C 26.94 psi -3.06 psi
-22 °C 26.79 psi -3.21 psi
-23 °C 26.65 psi -3.35 psi
-24 °C 26.5 psi -3.5 psi
-25 °C 26.36 psi -3.64 psi
-26 °C 26.21 psi -3.79 psi
-27 °C 26.06 psi -3.94 psi
-28 °C 25.92 psi -4.08 psi
-29 °C 25.77 psi -4.23 psi
-30 °C 25.63 psi -4.37 psi

Estimated calculations and should only be taken as suggestions.

2007 Cadillac STS Base Model tire load inflation table provides tire pressure psi values corresponding to tire's weight load in pounds (lbs).

If your vehicle is carrying extra load, increase your tire pressure accordingly. Never overinflate tires above maximum tire pressure indicated on tire sidewall.

If you replace your original equipment tires with plus size tires, or tires with different tire size, make sure to use tire load inflation chart to find corresponding tire pressure for your new tires.

235/50R18 Tire Load Inflation Chart

Psi / Load Index
96
97
101
26 psi 1201 lbs 1235 lbs 1246 lbs
27 psi 1235 lbs 1268 lbs 1279 lbs
28 psi 1257 lbs 1290 lbs 1301 lbs
29 psi 1312 lbs 1345 lbs 1356 lbs
30 psi 1367 lbs 1400 lbs 1400 lbs
31 psi 1378 lbs 1422 lbs 1422 lbs
32 psi 1411 lbs 1455 lbs 1455 lbs
33 psi 1466 lbs 1510 lbs 1510 lbs
34 psi 1488 lbs 1532 lbs 1532 lbs
35 psi 1510 lbs 1554 lbs 1565 lbs
36 psi 1565 lbs 1609 lbs 1620 lbs
37 psi 1565 lbs 1609 lbs 1642 lbs
38 psi 1565 lbs 1609 lbs 1664 lbs
39 psi 1565 lbs 1609 lbs 1720 lbs
40 psi 1565 lbs 1609 lbs 1742 lbs
41 psi 1565 lbs 1609 lbs 1764 lbs
42 psi 1565 lbs 1609 lbs 1819 lbs

255/45R18 Tire Load Inflation Chart

Psi / Load Index
99
103
26 psi 1312 lbs 1312 lbs
27 psi 1345 lbs 1356 lbs
28 psi 1367 lbs 1378 lbs
29 psi 1433 lbs 1433 lbs
30 psi 1488 lbs 1488 lbs
31 psi 1510 lbs 1510 lbs
32 psi 1543 lbs 1543 lbs
33 psi 1598 lbs 1598 lbs
34 psi 1620 lbs 1620 lbs
35 psi 1653 lbs 1653 lbs
36 psi 1709 lbs 1709 lbs
37 psi 1709 lbs 1742 lbs
38 psi 1709 lbs 1764 lbs
39 psi 1709 lbs 1819 lbs
40 psi 1709 lbs 1852 lbs
41 psi 1709 lbs 1874 lbs
42 psi 1709 lbs 1929 lbs
235/50R17
2007 Cadillac STS Base Model Tire Pressure
235/50R17
Front Tire Pressure

30 psi

2.07 bar
207 kPa
235/50R17
Rear Tire Pressure

30 psi

2.07 bar
207 kPa

2007 Cadillac STS Base Model has original equipment tire size of 235/50R17 for front tires and original equipment tire size of 235/50R17 for rear tires.

Recommended tire pressure for 2007 Cadillac STS Base Model front tires is 30 psi, and recommended tire pressure for 2007 Cadillac STS Base Model rear tires is 30 psi.

2007 Cadillac STS Base Model tire pressure range depends on its tire load carrying capacity, so make sure to check tire load inflation chart for 2007 Cadillac STS Base Model tire load indexes, weights and recommended psi.

Tire pressure for 2007 Cadillac STS Base Model is affected by changes in atmospheric temperature. Use tire inflation temperature chart below to identify tire pressure fluctuation with changes in temperature in order to adjust tire pressure in 2007 Cadillac STS Base Model tires and maintain tire inflation at recommended levels.

Change in Temperature represents the difference between current atmospheric temperature and the one used to set your vehicle's recommended tire pressure. Adjusted Pressure is the actual tire pressure at current temperature change. Pressure Difference shows by how much psi your tires are overinflated or underinflated.

Tire Pressure Temperature Chart | Tire Pressure Temperature Calculator

Front Tire: 235/50R17
Recommended Tire Pressure: 30 psi
Change in Temperature Adjusted Tire Pressure Pressure Difference
+100 °F 38.1 psi +8.1 psi
+95 °F 37.7 psi +7.7 psi
+90 °F 37.29 psi +7.29 psi
+85 °F 36.89 psi +6.89 psi
+80 °F 36.48 psi +6.48 psi
+75 °F 36.08 psi +6.08 psi
+70 °F 35.67 psi +5.67 psi
+65 °F 35.27 psi +5.27 psi
+60 °F 34.86 psi +4.86 psi
+55 °F 34.46 psi +4.46 psi
+50 °F 34.05 psi +4.05 psi
+45 °F 33.65 psi +3.65 psi
+40 °F 33.24 psi +3.24 psi
+35 °F 32.84 psi +2.84 psi
+30 °F 32.43 psi +2.43 psi
+25 °F 32.03 psi +2.03 psi
+20 °F 31.62 psi +1.62 psi
+15 °F 31.22 psi +1.22 psi
+10 °F 30.81 psi +0.81 psi
+5 °F 30.41 psi +0.41 psi
+0 °F 30 psi 0 psi
-5 °F 29.6 psi -0.4 psi
-10 °F 29.19 psi -0.81 psi
-15 °F 28.79 psi -1.21 psi
-20 °F 28.38 psi -1.62 psi
-25 °F 27.98 psi -2.02 psi
-30 °F 27.57 psi -2.43 psi
-35 °F 27.17 psi -2.83 psi
-40 °F 26.76 psi -3.24 psi
-45 °F 26.36 psi -3.64 psi
-50 °F 25.95 psi -4.05 psi
-55 °F 25.55 psi -4.45 psi
-60 °F 25.14 psi -4.86 psi
-65 °F 24.74 psi -5.26 psi
-70 °F 24.33 psi -5.67 psi
-75 °F 23.93 psi -6.07 psi
-80 °F 23.52 psi -6.48 psi
-85 °F 23.12 psi -6.88 psi
-90 °F 22.71 psi -7.29 psi
-95 °F 22.31 psi -7.69 psi
-100 °F 21.9 psi -8.1 psi
Rear Tire: 235/50R17
Recommended Tire Pressure: 30 psi
Change in Temperature Adjusted Tire Pressure Pressure Difference
+100 °F 38.1 psi +8.1 psi
+95 °F 37.7 psi +7.7 psi
+90 °F 37.29 psi +7.29 psi
+85 °F 36.89 psi +6.89 psi
+80 °F 36.48 psi +6.48 psi
+75 °F 36.08 psi +6.08 psi
+70 °F 35.67 psi +5.67 psi
+65 °F 35.27 psi +5.27 psi
+60 °F 34.86 psi +4.86 psi
+55 °F 34.46 psi +4.46 psi
+50 °F 34.05 psi +4.05 psi
+45 °F 33.65 psi +3.65 psi
+40 °F 33.24 psi +3.24 psi
+35 °F 32.84 psi +2.84 psi
+30 °F 32.43 psi +2.43 psi
+25 °F 32.03 psi +2.03 psi
+20 °F 31.62 psi +1.62 psi
+15 °F 31.22 psi +1.22 psi
+10 °F 30.81 psi +0.81 psi
+5 °F 30.41 psi +0.41 psi
+0 °F 30 psi 0 psi
-5 °F 29.6 psi -0.4 psi
-10 °F 29.19 psi -0.81 psi
-15 °F 28.79 psi -1.21 psi
-20 °F 28.38 psi -1.62 psi
-25 °F 27.98 psi -2.02 psi
-30 °F 27.57 psi -2.43 psi
-35 °F 27.17 psi -2.83 psi
-40 °F 26.76 psi -3.24 psi
-45 °F 26.36 psi -3.64 psi
-50 °F 25.95 psi -4.05 psi
-55 °F 25.55 psi -4.45 psi
-60 °F 25.14 psi -4.86 psi
-65 °F 24.74 psi -5.26 psi
-70 °F 24.33 psi -5.67 psi
-75 °F 23.93 psi -6.07 psi
-80 °F 23.52 psi -6.48 psi
-85 °F 23.12 psi -6.88 psi
-90 °F 22.71 psi -7.29 psi
-95 °F 22.31 psi -7.69 psi
-100 °F 21.9 psi -8.1 psi
Front Tire: 235/50R17
Recommended Tire Pressure: 30 psi
Change in Temperature Adjusted Tire Pressure Pressure Difference
+30 °C 34.37 psi +4.37 psi
+29 °C 34.23 psi +4.23 psi
+28 °C 34.08 psi +4.08 psi
+27 °C 33.94 psi +3.94 psi
+26 °C 33.79 psi +3.79 psi
+25 °C 33.65 psi +3.65 psi
+24 °C 33.5 psi +3.5 psi
+23 °C 33.35 psi +3.35 psi
+22 °C 33.21 psi +3.21 psi
+21 °C 33.06 psi +3.06 psi
+20 °C 32.92 psi +2.92 psi
+19 °C 32.77 psi +2.77 psi
+18 °C 32.62 psi +2.62 psi
+17 °C 32.48 psi +2.48 psi
+16 °C 32.33 psi +2.33 psi
+15 °C 32.19 psi +2.19 psi
+14 °C 32.04 psi +2.04 psi
+13 °C 31.9 psi +1.9 psi
+12 °C 31.75 psi +1.75 psi
+11 °C 31.6 psi +1.6 psi
+10 °C 31.46 psi +1.46 psi
+9 °C 31.31 psi +1.31 psi
+8 °C 31.17 psi +1.17 psi
+7 °C 31.02 psi +1.02 psi
+6 °C 30.87 psi +0.87 psi
+5 °C 30.73 psi +0.73 psi
+4 °C 30.58 psi +0.58 psi
+3 °C 30.44 psi +0.44 psi
+2 °C 30.29 psi +0.29 psi
+1 °C 30.15 psi +0.15 psi
+0 °C 30 psi 0 psi
-1 °C 29.85 psi -0.15 psi
-2 °C 29.71 psi -0.29 psi
-3 °C 29.56 psi -0.44 psi
-4 °C 29.42 psi -0.58 psi
-5 °C 29.27 psi -0.73 psi
-6 °C 29.13 psi -0.87 psi
-7 °C 28.98 psi -1.02 psi
-8 °C 28.83 psi -1.17 psi
-9 °C 28.69 psi -1.31 psi
-10 °C 28.54 psi -1.46 psi
-11 °C 28.4 psi -1.6 psi
-12 °C 28.25 psi -1.75 psi
-13 °C 28.1 psi -1.9 psi
-14 °C 27.96 psi -2.04 psi
-15 °C 27.81 psi -2.19 psi
-16 °C 27.67 psi -2.33 psi
-17 °C 27.52 psi -2.48 psi
-18 °C 27.38 psi -2.62 psi
-19 °C 27.23 psi -2.77 psi
-20 °C 27.08 psi -2.92 psi
-21 °C 26.94 psi -3.06 psi
-22 °C 26.79 psi -3.21 psi
-23 °C 26.65 psi -3.35 psi
-24 °C 26.5 psi -3.5 psi
-25 °C 26.36 psi -3.64 psi
-26 °C 26.21 psi -3.79 psi
-27 °C 26.06 psi -3.94 psi
-28 °C 25.92 psi -4.08 psi
-29 °C 25.77 psi -4.23 psi
-30 °C 25.63 psi -4.37 psi
Rear Tire: 235/50R17
Recommended Tire Pressure: 30 psi
Change in Temperature Adjusted Tire Pressure Pressure Difference
+30 °C 34.37 psi +4.37 psi
+29 °C 34.23 psi +4.23 psi
+28 °C 34.08 psi +4.08 psi
+27 °C 33.94 psi +3.94 psi
+26 °C 33.79 psi +3.79 psi
+25 °C 33.65 psi +3.65 psi
+24 °C 33.5 psi +3.5 psi
+23 °C 33.35 psi +3.35 psi
+22 °C 33.21 psi +3.21 psi
+21 °C 33.06 psi +3.06 psi
+20 °C 32.92 psi +2.92 psi
+19 °C 32.77 psi +2.77 psi
+18 °C 32.62 psi +2.62 psi
+17 °C 32.48 psi +2.48 psi
+16 °C 32.33 psi +2.33 psi
+15 °C 32.19 psi +2.19 psi
+14 °C 32.04 psi +2.04 psi
+13 °C 31.9 psi +1.9 psi
+12 °C 31.75 psi +1.75 psi
+11 °C 31.6 psi +1.6 psi
+10 °C 31.46 psi +1.46 psi
+9 °C 31.31 psi +1.31 psi
+8 °C 31.17 psi +1.17 psi
+7 °C 31.02 psi +1.02 psi
+6 °C 30.87 psi +0.87 psi
+5 °C 30.73 psi +0.73 psi
+4 °C 30.58 psi +0.58 psi
+3 °C 30.44 psi +0.44 psi
+2 °C 30.29 psi +0.29 psi
+1 °C 30.15 psi +0.15 psi
+0 °C 30 psi 0 psi
-1 °C 29.85 psi -0.15 psi
-2 °C 29.71 psi -0.29 psi
-3 °C 29.56 psi -0.44 psi
-4 °C 29.42 psi -0.58 psi
-5 °C 29.27 psi -0.73 psi
-6 °C 29.13 psi -0.87 psi
-7 °C 28.98 psi -1.02 psi
-8 °C 28.83 psi -1.17 psi
-9 °C 28.69 psi -1.31 psi
-10 °C 28.54 psi -1.46 psi
-11 °C 28.4 psi -1.6 psi
-12 °C 28.25 psi -1.75 psi
-13 °C 28.1 psi -1.9 psi
-14 °C 27.96 psi -2.04 psi
-15 °C 27.81 psi -2.19 psi
-16 °C 27.67 psi -2.33 psi
-17 °C 27.52 psi -2.48 psi
-18 °C 27.38 psi -2.62 psi
-19 °C 27.23 psi -2.77 psi
-20 °C 27.08 psi -2.92 psi
-21 °C 26.94 psi -3.06 psi
-22 °C 26.79 psi -3.21 psi
-23 °C 26.65 psi -3.35 psi
-24 °C 26.5 psi -3.5 psi
-25 °C 26.36 psi -3.64 psi
-26 °C 26.21 psi -3.79 psi
-27 °C 26.06 psi -3.94 psi
-28 °C 25.92 psi -4.08 psi
-29 °C 25.77 psi -4.23 psi
-30 °C 25.63 psi -4.37 psi

Estimated calculations and should only be taken as suggestions.

2007 Cadillac STS Base Model tire load inflation table provides tire pressure psi values corresponding to tire's weight load in pounds (lbs).

If your vehicle is carrying extra load, increase your tire pressure accordingly. Never overinflate tires above maximum tire pressure indicated on tire sidewall.

If you replace your original equipment tires with plus size tires, or tires with different tire size, make sure to use tire load inflation chart to find corresponding tire pressure for your new tires.

235/50R17 Tire Load Inflation Chart

Psi / Load Index
96
26 psi 1201 lbs
27 psi 1235 lbs
28 psi 1257 lbs
29 psi 1312 lbs
30 psi 1367 lbs
31 psi 1378 lbs
32 psi 1411 lbs
33 psi 1466 lbs
34 psi 1488 lbs
35 psi 1510 lbs
36 psi 1565 lbs
37 psi 1565 lbs
38 psi 1565 lbs
39 psi 1565 lbs
40 psi 1565 lbs
41 psi 1565 lbs
42 psi 1565 lbs
F: 235/50R17 - R: 255/45R17
2007 Cadillac STS Base Model Tire Pressure
235/50R17
Front Tire Pressure

30 psi

2.07 bar
207 kPa
255/45R17
Rear Tire Pressure

30 psi

2.07 bar
207 kPa

2007 Cadillac STS Base Model has original equipment tire size of 235/50R17 for front tires and original equipment tire size of 255/45R17 for rear tires.

Recommended tire pressure for 2007 Cadillac STS Base Model front tires is 30 psi, and recommended tire pressure for 2007 Cadillac STS Base Model rear tires is 30 psi.

2007 Cadillac STS Base Model tire pressure range depends on its tire load carrying capacity, so make sure to check tire load inflation chart for 2007 Cadillac STS Base Model tire load indexes, weights and recommended psi.

Tire pressure for 2007 Cadillac STS Base Model is affected by changes in atmospheric temperature. Use tire inflation temperature chart below to identify tire pressure fluctuation with changes in temperature in order to adjust tire pressure in 2007 Cadillac STS Base Model tires and maintain tire inflation at recommended levels.

Change in Temperature represents the difference between current atmospheric temperature and the one used to set your vehicle's recommended tire pressure. Adjusted Pressure is the actual tire pressure at current temperature change. Pressure Difference shows by how much psi your tires are overinflated or underinflated.

Tire Pressure Temperature Chart | Tire Pressure Temperature Calculator

Front Tire: 235/50R17
Recommended Tire Pressure: 30 psi
Change in Temperature Adjusted Tire Pressure Pressure Difference
+100 °F 38.1 psi +8.1 psi
+95 °F 37.7 psi +7.7 psi
+90 °F 37.29 psi +7.29 psi
+85 °F 36.89 psi +6.89 psi
+80 °F 36.48 psi +6.48 psi
+75 °F 36.08 psi +6.08 psi
+70 °F 35.67 psi +5.67 psi
+65 °F 35.27 psi +5.27 psi
+60 °F 34.86 psi +4.86 psi
+55 °F 34.46 psi +4.46 psi
+50 °F 34.05 psi +4.05 psi
+45 °F 33.65 psi +3.65 psi
+40 °F 33.24 psi +3.24 psi
+35 °F 32.84 psi +2.84 psi
+30 °F 32.43 psi +2.43 psi
+25 °F 32.03 psi +2.03 psi
+20 °F 31.62 psi +1.62 psi
+15 °F 31.22 psi +1.22 psi
+10 °F 30.81 psi +0.81 psi
+5 °F 30.41 psi +0.41 psi
+0 °F 30 psi 0 psi
-5 °F 29.6 psi -0.4 psi
-10 °F 29.19 psi -0.81 psi
-15 °F 28.79 psi -1.21 psi
-20 °F 28.38 psi -1.62 psi
-25 °F 27.98 psi -2.02 psi
-30 °F 27.57 psi -2.43 psi
-35 °F 27.17 psi -2.83 psi
-40 °F 26.76 psi -3.24 psi
-45 °F 26.36 psi -3.64 psi
-50 °F 25.95 psi -4.05 psi
-55 °F 25.55 psi -4.45 psi
-60 °F 25.14 psi -4.86 psi
-65 °F 24.74 psi -5.26 psi
-70 °F 24.33 psi -5.67 psi
-75 °F 23.93 psi -6.07 psi
-80 °F 23.52 psi -6.48 psi
-85 °F 23.12 psi -6.88 psi
-90 °F 22.71 psi -7.29 psi
-95 °F 22.31 psi -7.69 psi
-100 °F 21.9 psi -8.1 psi
Rear Tire: 255/45R17
Recommended Tire Pressure: 30 psi
Change in Temperature Adjusted Tire Pressure Pressure Difference
+100 °F 38.1 psi +8.1 psi
+95 °F 37.7 psi +7.7 psi
+90 °F 37.29 psi +7.29 psi
+85 °F 36.89 psi +6.89 psi
+80 °F 36.48 psi +6.48 psi
+75 °F 36.08 psi +6.08 psi
+70 °F 35.67 psi +5.67 psi
+65 °F 35.27 psi +5.27 psi
+60 °F 34.86 psi +4.86 psi
+55 °F 34.46 psi +4.46 psi
+50 °F 34.05 psi +4.05 psi
+45 °F 33.65 psi +3.65 psi
+40 °F 33.24 psi +3.24 psi
+35 °F 32.84 psi +2.84 psi
+30 °F 32.43 psi +2.43 psi
+25 °F 32.03 psi +2.03 psi
+20 °F 31.62 psi +1.62 psi
+15 °F 31.22 psi +1.22 psi
+10 °F 30.81 psi +0.81 psi
+5 °F 30.41 psi +0.41 psi
+0 °F 30 psi 0 psi
-5 °F 29.6 psi -0.4 psi
-10 °F 29.19 psi -0.81 psi
-15 °F 28.79 psi -1.21 psi
-20 °F 28.38 psi -1.62 psi
-25 °F 27.98 psi -2.02 psi
-30 °F 27.57 psi -2.43 psi
-35 °F 27.17 psi -2.83 psi
-40 °F 26.76 psi -3.24 psi
-45 °F 26.36 psi -3.64 psi
-50 °F 25.95 psi -4.05 psi
-55 °F 25.55 psi -4.45 psi
-60 °F 25.14 psi -4.86 psi
-65 °F 24.74 psi -5.26 psi
-70 °F 24.33 psi -5.67 psi
-75 °F 23.93 psi -6.07 psi
-80 °F 23.52 psi -6.48 psi
-85 °F 23.12 psi -6.88 psi
-90 °F 22.71 psi -7.29 psi
-95 °F 22.31 psi -7.69 psi
-100 °F 21.9 psi -8.1 psi
Front Tire: 235/50R17
Recommended Tire Pressure: 30 psi
Change in Temperature Adjusted Tire Pressure Pressure Difference
+30 °C 34.37 psi +4.37 psi
+29 °C 34.23 psi +4.23 psi
+28 °C 34.08 psi +4.08 psi
+27 °C 33.94 psi +3.94 psi
+26 °C 33.79 psi +3.79 psi
+25 °C 33.65 psi +3.65 psi
+24 °C 33.5 psi +3.5 psi
+23 °C 33.35 psi +3.35 psi
+22 °C 33.21 psi +3.21 psi
+21 °C 33.06 psi +3.06 psi
+20 °C 32.92 psi +2.92 psi
+19 °C 32.77 psi +2.77 psi
+18 °C 32.62 psi +2.62 psi
+17 °C 32.48 psi +2.48 psi
+16 °C 32.33 psi +2.33 psi
+15 °C 32.19 psi +2.19 psi
+14 °C 32.04 psi +2.04 psi
+13 °C 31.9 psi +1.9 psi
+12 °C 31.75 psi +1.75 psi
+11 °C 31.6 psi +1.6 psi
+10 °C 31.46 psi +1.46 psi
+9 °C 31.31 psi +1.31 psi
+8 °C 31.17 psi +1.17 psi
+7 °C 31.02 psi +1.02 psi
+6 °C 30.87 psi +0.87 psi
+5 °C 30.73 psi +0.73 psi
+4 °C 30.58 psi +0.58 psi
+3 °C 30.44 psi +0.44 psi
+2 °C 30.29 psi +0.29 psi
+1 °C 30.15 psi +0.15 psi
+0 °C 30 psi 0 psi
-1 °C 29.85 psi -0.15 psi
-2 °C 29.71 psi -0.29 psi
-3 °C 29.56 psi -0.44 psi
-4 °C 29.42 psi -0.58 psi
-5 °C 29.27 psi -0.73 psi
-6 °C 29.13 psi -0.87 psi
-7 °C 28.98 psi -1.02 psi
-8 °C 28.83 psi -1.17 psi
-9 °C 28.69 psi -1.31 psi
-10 °C 28.54 psi -1.46 psi
-11 °C 28.4 psi -1.6 psi
-12 °C 28.25 psi -1.75 psi
-13 °C 28.1 psi -1.9 psi
-14 °C 27.96 psi -2.04 psi
-15 °C 27.81 psi -2.19 psi
-16 °C 27.67 psi -2.33 psi
-17 °C 27.52 psi -2.48 psi
-18 °C 27.38 psi -2.62 psi
-19 °C 27.23 psi -2.77 psi
-20 °C 27.08 psi -2.92 psi
-21 °C 26.94 psi -3.06 psi
-22 °C 26.79 psi -3.21 psi
-23 °C 26.65 psi -3.35 psi
-24 °C 26.5 psi -3.5 psi
-25 °C 26.36 psi -3.64 psi
-26 °C 26.21 psi -3.79 psi
-27 °C 26.06 psi -3.94 psi
-28 °C 25.92 psi -4.08 psi
-29 °C 25.77 psi -4.23 psi
-30 °C 25.63 psi -4.37 psi
Rear Tire: 255/45R17
Recommended Tire Pressure: 30 psi
Change in Temperature Adjusted Tire Pressure Pressure Difference
+30 °C 34.37 psi +4.37 psi
+29 °C 34.23 psi +4.23 psi
+28 °C 34.08 psi +4.08 psi
+27 °C 33.94 psi +3.94 psi
+26 °C 33.79 psi +3.79 psi
+25 °C 33.65 psi +3.65 psi
+24 °C 33.5 psi +3.5 psi
+23 °C 33.35 psi +3.35 psi
+22 °C 33.21 psi +3.21 psi
+21 °C 33.06 psi +3.06 psi
+20 °C 32.92 psi +2.92 psi
+19 °C 32.77 psi +2.77 psi
+18 °C 32.62 psi +2.62 psi
+17 °C 32.48 psi +2.48 psi
+16 °C 32.33 psi +2.33 psi
+15 °C 32.19 psi +2.19 psi
+14 °C 32.04 psi +2.04 psi
+13 °C 31.9 psi +1.9 psi
+12 °C 31.75 psi +1.75 psi
+11 °C 31.6 psi +1.6 psi
+10 °C 31.46 psi +1.46 psi
+9 °C 31.31 psi +1.31 psi
+8 °C 31.17 psi +1.17 psi
+7 °C 31.02 psi +1.02 psi
+6 °C 30.87 psi +0.87 psi
+5 °C 30.73 psi +0.73 psi
+4 °C 30.58 psi +0.58 psi
+3 °C 30.44 psi +0.44 psi
+2 °C 30.29 psi +0.29 psi
+1 °C 30.15 psi +0.15 psi
+0 °C 30 psi 0 psi
-1 °C 29.85 psi -0.15 psi
-2 °C 29.71 psi -0.29 psi
-3 °C 29.56 psi -0.44 psi
-4 °C 29.42 psi -0.58 psi
-5 °C 29.27 psi -0.73 psi
-6 °C 29.13 psi -0.87 psi
-7 °C 28.98 psi -1.02 psi
-8 °C 28.83 psi -1.17 psi
-9 °C 28.69 psi -1.31 psi
-10 °C 28.54 psi -1.46 psi
-11 °C 28.4 psi -1.6 psi
-12 °C 28.25 psi -1.75 psi
-13 °C 28.1 psi -1.9 psi
-14 °C 27.96 psi -2.04 psi
-15 °C 27.81 psi -2.19 psi
-16 °C 27.67 psi -2.33 psi
-17 °C 27.52 psi -2.48 psi
-18 °C 27.38 psi -2.62 psi
-19 °C 27.23 psi -2.77 psi
-20 °C 27.08 psi -2.92 psi
-21 °C 26.94 psi -3.06 psi
-22 °C 26.79 psi -3.21 psi
-23 °C 26.65 psi -3.35 psi
-24 °C 26.5 psi -3.5 psi
-25 °C 26.36 psi -3.64 psi
-26 °C 26.21 psi -3.79 psi
-27 °C 26.06 psi -3.94 psi
-28 °C 25.92 psi -4.08 psi
-29 °C 25.77 psi -4.23 psi
-30 °C 25.63 psi -4.37 psi

Estimated calculations and should only be taken as suggestions.

2007 Cadillac STS Base Model tire load inflation table provides tire pressure psi values corresponding to tire's weight load in pounds (lbs).

If your vehicle is carrying extra load, increase your tire pressure accordingly. Never overinflate tires above maximum tire pressure indicated on tire sidewall.

If you replace your original equipment tires with plus size tires, or tires with different tire size, make sure to use tire load inflation chart to find corresponding tire pressure for your new tires.

235/50R17 Tire Load Inflation Chart

Psi / Load Index
96
26 psi 1201 lbs
27 psi 1235 lbs
28 psi 1257 lbs
29 psi 1312 lbs
30 psi 1367 lbs
31 psi 1378 lbs
32 psi 1411 lbs
33 psi 1466 lbs
34 psi 1488 lbs
35 psi 1510 lbs
36 psi 1565 lbs
37 psi 1565 lbs
38 psi 1565 lbs
39 psi 1565 lbs
40 psi 1565 lbs
41 psi 1565 lbs
42 psi 1565 lbs

255/45R17 Tire Load Inflation Chart

Psi / Load Index
98
26 psi 1268 lbs
27 psi 1301 lbs
28 psi 1323 lbs
29 psi 1378 lbs
30 psi 1433 lbs
31 psi 1455 lbs
32 psi 1488 lbs
33 psi 1543 lbs
34 psi 1565 lbs
35 psi 1598 lbs
36 psi 1653 lbs
37 psi 1653 lbs
38 psi 1653 lbs
39 psi 1653 lbs
40 psi 1653 lbs
41 psi 1653 lbs
42 psi 1653 lbs
255/45R18
2007 Cadillac STS Base Model Tire Pressure
255/45R18
Front Tire Pressure

30 psi

2.07 bar
207 kPa
255/45R18
Rear Tire Pressure

30 psi

2.07 bar
207 kPa

2007 Cadillac STS Base Model has original equipment tire size of 255/45R18 for front tires and original equipment tire size of 255/45R18 for rear tires.

Recommended tire pressure for 2007 Cadillac STS Base Model front tires is 30 psi, and recommended tire pressure for 2007 Cadillac STS Base Model rear tires is 30 psi.

2007 Cadillac STS Base Model tire pressure range depends on its tire load carrying capacity, so make sure to check tire load inflation chart for 2007 Cadillac STS Base Model tire load indexes, weights and recommended psi.

Tire pressure for 2007 Cadillac STS Base Model is affected by changes in atmospheric temperature. Use tire inflation temperature chart below to identify tire pressure fluctuation with changes in temperature in order to adjust tire pressure in 2007 Cadillac STS Base Model tires and maintain tire inflation at recommended levels.

Change in Temperature represents the difference between current atmospheric temperature and the one used to set your vehicle's recommended tire pressure. Adjusted Pressure is the actual tire pressure at current temperature change. Pressure Difference shows by how much psi your tires are overinflated or underinflated.

Tire Pressure Temperature Chart | Tire Pressure Temperature Calculator

Front Tire: 255/45R18
Recommended Tire Pressure: 30 psi
Change in Temperature Adjusted Tire Pressure Pressure Difference
+100 °F 38.1 psi +8.1 psi
+95 °F 37.7 psi +7.7 psi
+90 °F 37.29 psi +7.29 psi
+85 °F 36.89 psi +6.89 psi
+80 °F 36.48 psi +6.48 psi
+75 °F 36.08 psi +6.08 psi
+70 °F 35.67 psi +5.67 psi
+65 °F 35.27 psi +5.27 psi
+60 °F 34.86 psi +4.86 psi
+55 °F 34.46 psi +4.46 psi
+50 °F 34.05 psi +4.05 psi
+45 °F 33.65 psi +3.65 psi
+40 °F 33.24 psi +3.24 psi
+35 °F 32.84 psi +2.84 psi
+30 °F 32.43 psi +2.43 psi
+25 °F 32.03 psi +2.03 psi
+20 °F 31.62 psi +1.62 psi
+15 °F 31.22 psi +1.22 psi
+10 °F 30.81 psi +0.81 psi
+5 °F 30.41 psi +0.41 psi
+0 °F 30 psi 0 psi
-5 °F 29.6 psi -0.4 psi
-10 °F 29.19 psi -0.81 psi
-15 °F 28.79 psi -1.21 psi
-20 °F 28.38 psi -1.62 psi
-25 °F 27.98 psi -2.02 psi
-30 °F 27.57 psi -2.43 psi
-35 °F 27.17 psi -2.83 psi
-40 °F 26.76 psi -3.24 psi
-45 °F 26.36 psi -3.64 psi
-50 °F 25.95 psi -4.05 psi
-55 °F 25.55 psi -4.45 psi
-60 °F 25.14 psi -4.86 psi
-65 °F 24.74 psi -5.26 psi
-70 °F 24.33 psi -5.67 psi
-75 °F 23.93 psi -6.07 psi
-80 °F 23.52 psi -6.48 psi
-85 °F 23.12 psi -6.88 psi
-90 °F 22.71 psi -7.29 psi
-95 °F 22.31 psi -7.69 psi
-100 °F 21.9 psi -8.1 psi
Rear Tire: 255/45R18
Recommended Tire Pressure: 30 psi
Change in Temperature Adjusted Tire Pressure Pressure Difference
+100 °F 38.1 psi +8.1 psi
+95 °F 37.7 psi +7.7 psi
+90 °F 37.29 psi +7.29 psi
+85 °F 36.89 psi +6.89 psi
+80 °F 36.48 psi +6.48 psi
+75 °F 36.08 psi +6.08 psi
+70 °F 35.67 psi +5.67 psi
+65 °F 35.27 psi +5.27 psi
+60 °F 34.86 psi +4.86 psi
+55 °F 34.46 psi +4.46 psi
+50 °F 34.05 psi +4.05 psi
+45 °F 33.65 psi +3.65 psi
+40 °F 33.24 psi +3.24 psi
+35 °F 32.84 psi +2.84 psi
+30 °F 32.43 psi +2.43 psi
+25 °F 32.03 psi +2.03 psi
+20 °F 31.62 psi +1.62 psi
+15 °F 31.22 psi +1.22 psi
+10 °F 30.81 psi +0.81 psi
+5 °F 30.41 psi +0.41 psi
+0 °F 30 psi 0 psi
-5 °F 29.6 psi -0.4 psi
-10 °F 29.19 psi -0.81 psi
-15 °F 28.79 psi -1.21 psi
-20 °F 28.38 psi -1.62 psi
-25 °F 27.98 psi -2.02 psi
-30 °F 27.57 psi -2.43 psi
-35 °F 27.17 psi -2.83 psi
-40 °F 26.76 psi -3.24 psi
-45 °F 26.36 psi -3.64 psi
-50 °F 25.95 psi -4.05 psi
-55 °F 25.55 psi -4.45 psi
-60 °F 25.14 psi -4.86 psi
-65 °F 24.74 psi -5.26 psi
-70 °F 24.33 psi -5.67 psi
-75 °F 23.93 psi -6.07 psi
-80 °F 23.52 psi -6.48 psi
-85 °F 23.12 psi -6.88 psi
-90 °F 22.71 psi -7.29 psi
-95 °F 22.31 psi -7.69 psi
-100 °F 21.9 psi -8.1 psi
Front Tire: 255/45R18
Recommended Tire Pressure: 30 psi
Change in Temperature Adjusted Tire Pressure Pressure Difference
+30 °C 34.37 psi +4.37 psi
+29 °C 34.23 psi +4.23 psi
+28 °C 34.08 psi +4.08 psi
+27 °C 33.94 psi +3.94 psi
+26 °C 33.79 psi +3.79 psi
+25 °C 33.65 psi +3.65 psi
+24 °C 33.5 psi +3.5 psi
+23 °C 33.35 psi +3.35 psi
+22 °C 33.21 psi +3.21 psi
+21 °C 33.06 psi +3.06 psi
+20 °C 32.92 psi +2.92 psi
+19 °C 32.77 psi +2.77 psi
+18 °C 32.62 psi +2.62 psi
+17 °C 32.48 psi +2.48 psi
+16 °C 32.33 psi +2.33 psi
+15 °C 32.19 psi +2.19 psi
+14 °C 32.04 psi +2.04 psi
+13 °C 31.9 psi +1.9 psi
+12 °C 31.75 psi +1.75 psi
+11 °C 31.6 psi +1.6 psi
+10 °C 31.46 psi +1.46 psi
+9 °C 31.31 psi +1.31 psi
+8 °C 31.17 psi +1.17 psi
+7 °C 31.02 psi +1.02 psi
+6 °C 30.87 psi +0.87 psi
+5 °C 30.73 psi +0.73 psi
+4 °C 30.58 psi +0.58 psi
+3 °C 30.44 psi +0.44 psi
+2 °C 30.29 psi +0.29 psi
+1 °C 30.15 psi +0.15 psi
+0 °C 30 psi 0 psi
-1 °C 29.85 psi -0.15 psi
-2 °C 29.71 psi -0.29 psi
-3 °C 29.56 psi -0.44 psi
-4 °C 29.42 psi -0.58 psi
-5 °C 29.27 psi -0.73 psi
-6 °C 29.13 psi -0.87 psi
-7 °C 28.98 psi -1.02 psi
-8 °C 28.83 psi -1.17 psi
-9 °C 28.69 psi -1.31 psi
-10 °C 28.54 psi -1.46 psi
-11 °C 28.4 psi -1.6 psi
-12 °C 28.25 psi -1.75 psi
-13 °C 28.1 psi -1.9 psi
-14 °C 27.96 psi -2.04 psi
-15 °C 27.81 psi -2.19 psi
-16 °C 27.67 psi -2.33 psi
-17 °C 27.52 psi -2.48 psi
-18 °C 27.38 psi -2.62 psi
-19 °C 27.23 psi -2.77 psi
-20 °C 27.08 psi -2.92 psi
-21 °C 26.94 psi -3.06 psi
-22 °C 26.79 psi -3.21 psi
-23 °C 26.65 psi -3.35 psi
-24 °C 26.5 psi -3.5 psi
-25 °C 26.36 psi -3.64 psi
-26 °C 26.21 psi -3.79 psi
-27 °C 26.06 psi -3.94 psi
-28 °C 25.92 psi -4.08 psi
-29 °C 25.77 psi -4.23 psi
-30 °C 25.63 psi -4.37 psi
Rear Tire: 255/45R18
Recommended Tire Pressure: 30 psi
Change in Temperature Adjusted Tire Pressure Pressure Difference
+30 °C 34.37 psi +4.37 psi
+29 °C 34.23 psi +4.23 psi
+28 °C 34.08 psi +4.08 psi
+27 °C 33.94 psi +3.94 psi
+26 °C 33.79 psi +3.79 psi
+25 °C 33.65 psi +3.65 psi
+24 °C 33.5 psi +3.5 psi
+23 °C 33.35 psi +3.35 psi
+22 °C 33.21 psi +3.21 psi
+21 °C 33.06 psi +3.06 psi
+20 °C 32.92 psi +2.92 psi
+19 °C 32.77 psi +2.77 psi
+18 °C 32.62 psi +2.62 psi
+17 °C 32.48 psi +2.48 psi
+16 °C 32.33 psi +2.33 psi
+15 °C 32.19 psi +2.19 psi
+14 °C 32.04 psi +2.04 psi
+13 °C 31.9 psi +1.9 psi
+12 °C 31.75 psi +1.75 psi
+11 °C 31.6 psi +1.6 psi
+10 °C 31.46 psi +1.46 psi
+9 °C 31.31 psi +1.31 psi
+8 °C 31.17 psi +1.17 psi
+7 °C 31.02 psi +1.02 psi
+6 °C 30.87 psi +0.87 psi
+5 °C 30.73 psi +0.73 psi
+4 °C 30.58 psi +0.58 psi
+3 °C 30.44 psi +0.44 psi
+2 °C 30.29 psi +0.29 psi
+1 °C 30.15 psi +0.15 psi
+0 °C 30 psi 0 psi
-1 °C 29.85 psi -0.15 psi
-2 °C 29.71 psi -0.29 psi
-3 °C 29.56 psi -0.44 psi
-4 °C 29.42 psi -0.58 psi
-5 °C 29.27 psi -0.73 psi
-6 °C 29.13 psi -0.87 psi
-7 °C 28.98 psi -1.02 psi
-8 °C 28.83 psi -1.17 psi
-9 °C 28.69 psi -1.31 psi
-10 °C 28.54 psi -1.46 psi
-11 °C 28.4 psi -1.6 psi
-12 °C 28.25 psi -1.75 psi
-13 °C 28.1 psi -1.9 psi
-14 °C 27.96 psi -2.04 psi
-15 °C 27.81 psi -2.19 psi
-16 °C 27.67 psi -2.33 psi
-17 °C 27.52 psi -2.48 psi
-18 °C 27.38 psi -2.62 psi
-19 °C 27.23 psi -2.77 psi
-20 °C 27.08 psi -2.92 psi
-21 °C 26.94 psi -3.06 psi
-22 °C 26.79 psi -3.21 psi
-23 °C 26.65 psi -3.35 psi
-24 °C 26.5 psi -3.5 psi
-25 °C 26.36 psi -3.64 psi
-26 °C 26.21 psi -3.79 psi
-27 °C 26.06 psi -3.94 psi
-28 °C 25.92 psi -4.08 psi
-29 °C 25.77 psi -4.23 psi
-30 °C 25.63 psi -4.37 psi

Estimated calculations and should only be taken as suggestions.

2007 Cadillac STS Base Model tire load inflation table provides tire pressure psi values corresponding to tire's weight load in pounds (lbs).

If your vehicle is carrying extra load, increase your tire pressure accordingly. Never overinflate tires above maximum tire pressure indicated on tire sidewall.

If you replace your original equipment tires with plus size tires, or tires with different tire size, make sure to use tire load inflation chart to find corresponding tire pressure for your new tires.

255/45R18 Tire Load Inflation Chart

Psi / Load Index
99
103
26 psi 1312 lbs 1312 lbs
27 psi 1345 lbs 1356 lbs
28 psi 1367 lbs 1378 lbs
29 psi 1433 lbs 1433 lbs
30 psi 1488 lbs 1488 lbs
31 psi 1510 lbs 1510 lbs
32 psi 1543 lbs 1543 lbs
33 psi 1598 lbs 1598 lbs
34 psi 1620 lbs 1620 lbs
35 psi 1653 lbs 1653 lbs
36 psi 1709 lbs 1709 lbs
37 psi 1709 lbs 1742 lbs
38 psi 1709 lbs 1764 lbs
39 psi 1709 lbs 1819 lbs
40 psi 1709 lbs 1852 lbs
41 psi 1709 lbs 1874 lbs
42 psi 1709 lbs 1929 lbs
Tire Pressure Tips
  • Recommended tire pressure for 2007 Cadillac STS Base Model tires can be found in vehicle owner’s manual, on sticker placard on driver's door jam, inside glove box compartment or fuel door.
  • It is important to use tire pressure recommended by Cadillac manufacturer, not tire pressure listed on tire sidewall.
  • 2007 Cadillac STS Base Model tires can naturally lose on average 1 to 2 psi of tire pressure monthly, so check tire pressure regularly and add air as needed to maintain proper tire pressure at recommended inflation levels.
  • Check tire pressure in your 2007 Cadillac STS Base Model tires when they are "cold" and have not been driven for at least three hours. Never adjust tire pressure when tires are "hot".
  • Tire pressure in 2007 Cadillac STS Base Model tires can change by about 2.5% for each 10°F change in atmospheric temperature. Adjust tire pressure accordingly.
  • Underinflated tires can significantly reduce the life of 2007 Cadillac STS Base Model tires and reduce fuel efficiency by up to 5%.
  • Overinflating 2007 Cadillac STS Base Model tires does not increase their load-carrying capacity. Always use tire inflation value recommended for your 2007 Cadillac STS Base Model by manufacturer.
  • When replacing original equipment tires for 2007 Cadillac STS Base Model with plus size tires, or tires with different size, check tire load inflation chart to find proper tire pressure for your new tires.
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It is important to maintain proper tire pressure for 2007 Cadillac STS Base Model tires. Low tire pressure will result in tire underinflation, and high tire pressure will result in tire overinflation, which can compromise tire safety, cause tire blowout, decrease fuel efficiency, cause uneven tire wear and reduce tire tread life. Check 2007 Cadillac STS Base Model tire pressure regularly, and monitor 2007 Cadillac STS Base Model tire inflation levels to avoid overinflated or underinflated tires.

Keep in mind that tire inflation value listed on tire sidewall is a maximum tire pressure the tire can be inflated to, and not a recommended tire pressure for 2007 Cadillac STS Base Model. Use recommended tire pressure listed on the tire pressure chart found on a sticker on driver's door jam or in 2007 Cadillac STS Base Model manual. Also, pay attention as your 2007 Cadillac STS Base Model may have different recommended tire pressure values for front and rear tires. Keep 2007 Cadillac STS Base Model tires inflated within reasonable psi range of the recommended levels.

If you replace 2007 Cadillac STS Base Model original equipment tires with optional tire sizes or you switch to plus size tires, make sure to follow guidelines for the application of load and inflation tables to find proper tire pressure for your new tires on your 2007 Cadillac STS Base Model. Tires with the same load index, regardless of tire size, may carry the same load, but not always, and they may require substantially different inflation pressures. Tire load index may not be used independently to determine replacement tire acceptability for load capacity. An equal or greater load index does not always correspond to equal or greater load capacity at all inflation pressure settings.

Always refer to the 2007 Cadillac STS Base Model owner’s manual for any specific safety advice regarding the application of replacement tires.

2007 Cadillac STS Base Model replacement tires must have equal or greater speed rating compared to the original equipment tires if your 2007 Cadillac STS Base Model speed capability is to be maintained. It is recommended that tire installers refer to the 2007 Cadillac STS Base Model owner’s manual to identify any tire speed rating restriction or recommendation that could affect the operation of the vehicle. If 2007 Cadillac STS Base Model replacement tires have a lower speed rating than 2007 Cadillac STS Base Model original equipment tires, the vehicle’s speed must be restricted to that of the replacement tires.

Original equipment tires that come on your 2007 Cadillac STS Base Model will have the proper tire load index, so stick to that number or higher when you replace them with new tires. Tire load index tells you how much weight your tire can carry. Putting too much weight on your tires will overload them, and can cause tire damage, premature tire wear or even tire blowout. You can check 2007 Cadillac STS Base Model manual to find the recommended tire size and load rating.

2007 Cadillac STS Base Model tire pressure changes with temperature, so check your 2007 Cadillac STS Base Model tire pressure when outside temperatures change. During colder months when temperatures drop, 2007 Cadillac STS Base Model tire pressure will decrease also by approximately 1 psi for each 10 degrees Fahrenheit. Maintain proper 2007 Cadillac STS Base Model winter tire pressure by adding air to your tires as needed to the recommended tire inflation levels.

2007 Cadillac STS Base Model tire pressure should be checked when tires are cold, after the vehicle has not been driven for at least three hours. It is best to check your tire inflation pressure in the morning, after the vehicle has been parked overnight.

If your 2007 Cadillac STS Base Model is equipped with tire pressure monitoring system (TPMS), pay attention to low tire pressure warning light being on. Ensure your tire pressure sensors are working properly to stay alert and enjoy a safe ride. If your tire pressure warning light is on, check front and rear tires to make sure they are properly inflated.

What is my recommended tire pressure for my 2007 Cadillac STS Base Model?
Recommended tire pressure for 2007 Cadillac STS Base Model is determined by the 2007 Cadillac STS Base Model manufacturer based on your vehicle's characteristics and tire sizes. Select your 2007 Cadillac STS Base Model tire size to find recommended tire pressure for 2007 Cadillac STS Base Model tires.

How do I find my recommended tire pressure setting for my 2007 Cadillac STS Base Model? What should my 2007 Cadillac STS Base Model tire pressure be?
You can find your 2007 Cadillac STS Base Model recommended tire pressure in 2007 Cadillac STS Base Model owner's manual, on sticker attached to the driver's door jam, inside glove box compartment or fuel door. Recommended tire inflation for 2007 Cadillac STS Base Model will be listed in psi, bar or kPa.

How to check my 2007 Cadillac STS Base Model tire pressure?
Proper 2007 Cadillac STS Base Model tire inflation is essential to the overall tire performance of your vehicle. To check tire pressure for 2007 Cadillac STS Base Model you will need to know its recommended tire pressure levels and a standard or digital tire pressure gauge. Check inflation levels in 2007 Cadillac STS Base Model tires with the tire pressure gauge and adjust your 2007 Cadillac STS Base Model tire pressure to its recommended levels be adding or releasing air. Check 2007 Cadillac STS Base Model tire pressure levels in all tires again. Make sure to check tire pressure for your 2007 Cadillac STS Base Model regularly to ensure safe and comfortable drive.

Why is my 2007 Cadillac STS Base Model tire pressure warning light on?
If your 2007 Cadillac STS Base Model is equipped with TPMS (Tire Pressure Monitoring System) it will alert you when tire pressure is too low and your tires could be underinflated, or tire pressure is too high and your tires could be overinflated, both of which can lead to uneven tire wear and can cause tire failure. If 2007 Cadillac STS Base Model low tire pressure warning light is on, check all 2007 Cadillac STS Base Model tires for low tire pressure and inflate tires to the recommended tire pressure levels. Keep in mind that TPMS does not replace routine tire pressure check and maintenance.

How do I reset tire pressure warning light for 2007 Cadillac STS Base Model?
To reset tire pressure monitoring system for 2007 Cadillac STS Base Model, make sure front and rear tires are inflated to the recommended levels. Turn the engine on, then press and hold the tire pressure reset button located under the steering wheel on the instrument panel. Hold the button down until the TPMS light blinks three times then release the button.

What is recommended winter tire pressure for my 2007 Cadillac STS Base Model?
Recommended winter tire pressure for 2007 Cadillac STS Base Model is same no matter what season. You should always keep your 2007 Cadillac STS Base Model tire pressure at recommended levels. Keep in mind that 2007 Cadillac STS Base Model tire inflation levels will decrease with lower outside temperatures, so make sure you check 2007 Cadillac STS Base Model tire pressure during winter months regularly to keep 2007 Cadillac STS Base Model tires properly inflated.