The proper anser to this question is to read the tire placer on the vehicle most commenly located on the drivers door edge , may also be on other doors/trunk lid/ glove box . the average tire psi is 32-35 psi . i personly recomend more than less for better gas milege and to low air pressure will cause high rolling resistents/high heat build up / tire blow out ,like what happened to ford exporers .the tire max air pressure is listed on the tire sidewall (44psi truck tires higher depending on load range ) also check them cold ,the psi incresses w tempertature. i run 40 psi (cold ) in my cars.
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The proper anser to this question is to read the tire placer on the vehicle most commenly located on the drivers door edge , may also be on other doors/trunk lid/ glove box . the average tire psi is 32-35 psi . i personly recomend more than less for better gas milege and to low air pressure will cause high rolling resistents/high heat build up / tire blow out ,like what happened to ford exporers .the tire max air pressure is listed on the tire sidewall (44psi truck tires higher depending on load range ) also check them cold ,the psi incresses w tempertature. i run 40 psi (cold ) in my cars.