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255/45R18 tire load inflation table provides tire pressure psi corresponding to tire's weight load in pounds (lbs).
If your vehicle is carrying extra load, you might want to increase your tire pressure accordingly, but do not overinflate your tires above the maximum tire pressure level indicated on your tire sidewall. Remember that overinflating your tires does not increase their load carrying capacity.
Psi / Load Index
|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 brands and models with 255/45R18 tire size. Click on tire model to see its tire pressure chart.
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