My Ranger had about 27 PSI in the tires when I bumped it up to 32 the performance difference was very noticable, cant believe I didnt check it more often . plus almost 2 more MPG . I think if you are running rough roads you are better off around 32 , 34 psi , anything over and you definitely feel the shocks taking a beating, especially in a small truck! although smoother highway travel can probably go up to 36 psi , just my opinion
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