hi , have a question about tire pressure, i'm running toyo proxex tpt and the max psi pressure on those things is 44psi, i am running them at 42psi because it eliminated a slight vibration i had at around 65-75 mph, i know as tires heat up the pressure rises 5-8 psi i heard, my question is do tire manifacturers compensate for the rise in tire pressure and make the tires actually withstand more than the actuall amount written on the tires (44psi mine case)?

 

I've always heard just to use the vehicle recommended psi, not the tires maximum rating. For our cars I believe it is 35 psi, and I've always just set my tires to that.

 

believe me i'd love to have my tires at the recommended psi cuz at 42psi the ride is hard as hell especially with a sport tuned suspension, no luxury at all, but i can't have it cuz of that annoying vibration, maybe they balanced my wheels wrong or maybe its the tires

 

It may be bad balance, if you have aftermarket wheels did you get hubcentric rings put on as well? If not, that is likely what is causing the vibration at high speeds.

If none of this applies to you then I'm out of ideas lol, good luck.

 

If you keep the PSI that high, the centers of each of your tires is going to wear out very quickly.