2009 Porsche Boxster Tire Pressure

Recommended tire pressure for 2009 Porsche Boxster tires to improve fuel efficiency, extend tire life and drive safely.

2009 Porsche Boxster comes in 5 trims equipped with 10 original equipment tire size sets with recommended tire inflation of 29 psi to 36 psi.

2009 Porsche Boxster (Winter Tires) Tire Pressure

Front Tire Rear Tire
Tire Size 205/55R17 235/50R17
Recommended Tire Pressure 29 psi (2 bar or 200 kPa) 36 psi (2.5 bar or 248 kPa)
Acceptable Winter Tire Pressure 32 - 34 psi 39 - 41 psi
Tire Size Type Metric Metric
Tire Load Index 91 96
Tire Load Capacity 1356 lbs (615 kg) 1566 lbs (710 kg)
Tire Speed Rating V V
Maximum Tire Speed 149 mph (240 km/h) 149 mph (240 km/h)
2009 Porsche Boxster (Winter Tires) is equipped with Tire Pressure Monitoring System (TPMS).

2009 Porsche Boxster Base Model Tire Pressure

Front Tire Rear Tire
Tire Size 205/55R17 235/50R17
Recommended Tire Pressure 29 psi (2 bar or 200 kPa) 36 psi (2.5 bar or 248 kPa)
Acceptable Winter Tire Pressure 32 - 34 psi 39 - 41 psi
Tire Size Type Metric Metric
Tire Load Index 91 96
Tire Load Capacity 1356 lbs (615 kg) 1566 lbs (710 kg)
Tire Speed Rating Y Y
Maximum Tire Speed 186 mph (300 km/h) 186 mph (300 km/h)
2009 Porsche Boxster Base Model is equipped with Tire Pressure Monitoring System (TPMS).
Front Tire Rear Tire
Tire Size 235/35R19 265/35R19
Recommended Tire Pressure 32 psi (2.2 bar or 221 kPa) 36 psi (2.5 bar or 248 kPa)
Acceptable Winter Tire Pressure 35 - 37 psi 39 - 41 psi
Tire Size Type Metric Metric
Tire Load Index 87 94
Tire Load Capacity 1202 lbs (545 kg) 1478 lbs (670 kg)
Tire Speed Rating (Y) (Y)
Maximum Tire Speed 195 mph (314 km/h) 195 mph (314 km/h)
2009 Porsche Boxster Base Model is equipped with Tire Pressure Monitoring System (TPMS).
Front Tire Rear Tire
Tire Size 235/40R18 265/40R18
Recommended Tire Pressure 29 psi (2 bar or 200 kPa) 36 psi (2.5 bar or 248 kPa)
Acceptable Winter Tire Pressure 32 - 34 psi 39 - 41 psi
Tire Size Type Metric Metric
Tire Load Index 91 101
Tire Load Capacity 1356 lbs (615 kg) 1819 lbs (825 kg)
Tire Speed Rating (Y) (Y)
Maximum Tire Speed 195 mph (314 km/h) 195 mph (314 km/h)
2009 Porsche Boxster Base Model is equipped with Tire Pressure Monitoring System (TPMS).

2009 Porsche Boxster S Tire Pressure

Front Tire Rear Tire
Tire Size 235/35R19 265/35R19
Recommended Tire Pressure 32 psi (2.2 bar or 221 kPa) 36 psi (2.5 bar or 248 kPa)
Acceptable Winter Tire Pressure 35 - 37 psi 39 - 41 psi
Tire Size Type Metric Metric
Tire Load Index 87 94
Tire Load Capacity 1202 lbs (545 kg) 1478 lbs (670 kg)
Tire Speed Rating (Y) (Y)
Maximum Tire Speed 195 mph (314 km/h) 195 mph (314 km/h)
2009 Porsche Boxster S is equipped with Tire Pressure Monitoring System (TPMS).
Front Tire Rear Tire
Tire Size 235/40R18 265/40R18
Recommended Tire Pressure 29 psi (2 bar or 200 kPa) 36 psi (2.5 bar or 248 kPa)
Acceptable Winter Tire Pressure 32 - 34 psi 39 - 41 psi
Tire Size Type Metric Metric
Tire Load Index 91 101
Tire Load Capacity 1356 lbs (615 kg) 1819 lbs (825 kg)
Tire Speed Rating (Y) (Y)
Maximum Tire Speed 195 mph (314 km/h) 195 mph (314 km/h)
2009 Porsche Boxster S is equipped with Tire Pressure Monitoring System (TPMS).

2009 Porsche Boxster S (Winter Tires) Tire Pressure

Front Tire Rear Tire
Tire Size 235/40R18 255/40R18
Recommended Tire Pressure 29 psi (2 bar or 200 kPa) 36 psi (2.5 bar or 248 kPa)
Acceptable Winter Tire Pressure 32 - 34 psi 39 - 41 psi
Tire Size Type Metric Metric
Tire Load Index 91 95
Tire Load Capacity 1356 lbs (615 kg) 1522 lbs (690 kg)
Tire Speed Rating V V
Maximum Tire Speed 149 mph (240 km/h) 149 mph (240 km/h)
2009 Porsche Boxster S (Winter Tires) is equipped with Tire Pressure Monitoring System (TPMS).

2009 Porsche Boxster S Porsche Design 2 Tire Pressure

Front Tire Rear Tire
Tire Size 235/35R19 265/35R19
Recommended Tire Pressure 32 psi (2.2 bar or 221 kPa) 36 psi (2.5 bar or 248 kPa)
Acceptable Winter Tire Pressure 35 - 37 psi 39 - 41 psi
Tire Size Type Metric Metric
Tire Load Index 87 94
Tire Load Capacity 1202 lbs (545 kg) 1478 lbs (670 kg)
Tire Speed Rating (Y) (Y)
Maximum Tire Speed 195 mph (314 km/h) 195 mph (314 km/h)
2009 Porsche Boxster S Porsche Design 2 is equipped with Tire Pressure Monitoring System (TPMS).

All tire pressure information listed is for informational purposes only. TirePressure.com does not warrant or make any representations regarding the use of or the results of the use of this information. Always refer to your vehicle owner's manual for proper tire inflation pressures.

Porsche Tire Pressure | Porsche Boxster Tire Pressure | 2009 Porsche Tire Pressure

It is vital to maintain proper tire inflation pressures for 2009 Porsche Boxster tires. Low tire pressure and underinflated tires can lead to uneven and excessive tire wear, poor handling and reduced fuel economy. High tire pressure and overinflated tires can result in reduced traction, poor braking and can even be a cause of a tire blowout. Check tire pressure regularly and maintain correct tire inflation for 2009 Porsche Boxster to enjoy a safe and comfortable drive.

Recommended tire pressure for 2009 Porsche Boxster is determined by the manufacturer based on its characteristics and original equipment tire sizes. You can find 2009 Porsche Boxster recommended tire pressure in owner's manual or on a tire placard on the side of driver's door or door jam. 2009 Porsche Boxster tire inflation will be listed in psi (pounds per square inch), bar or kPa (kilopascals). Keep in mind that tire inflation listed on tire sidewall is the maximum air pressure the tire can hold to carry its maximum load, and not necessarily the recommended tire pressure for 2009 Porsche Boxster. Your 2009 Porsche Boxster may also have different recommended tire pressure settings for front and rear tires, especially if equipped with staggered tires.

To check 2009 Porsche Boxster tire pressure you will need to know its recommended tire inflation and a tire pressure gauge. Check tire pressure when tires are "cold" using quality tire pressure gauge. Adjust 2009 Porsche Boxster tire inflation to the recommended tire pressure settings as needed by adding or releasing air.

If you replace 2009 Porsche Boxster original equipment tires and switch to different tire size, make sure to follow guidelines for the application of load and inflation tables to find proper tire pressure for new tires. Always refer to the 2009 Porsche Boxster owner’s manual for any specific safety advice regarding the application of replacement tires.

2009 Porsche Boxster tire pressure fluctuates with ambient temperatures, so during winter when temperatures drop tires may lose approximately 1 psi of air pressure for every 10 degree Fahrenheit decrease in temperature. Some vehicle manufacturers may recommend inflating tires 3 to 5 psi above the recommended tire pressure settings to compensate for lower temperatures during winter. Make sure to check tire pressure more often in the winter to keep tires properly inflated for a safe ride on snow and icy roads.

If your 2009 Porsche Boxster is made after 2007, it should be equipped with tire pressure monitoring system that uses tire pressure sensors to alert the driver when tire pressure is low. If 2009 Porsche Boxster low tire pressure warning light is on, check all tires for low air pressure and inflate as needed. If you need to reset TPMS, refer to owner's manual on how to reset 2009 Porsche Boxster tire pressure monitoring system.