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Sustained high speeds definitely calls for higher pressures....this lowers sidewall flex which builds heat.
I recall my Mercedes had two pressures specified on the inside of the fuel door. One was for driving above 100mph and the other for below. I always kept mine at the higher number. It was about 10 psi higher if I recall.
Even though 85 is not 100, stands to reason a suv tire builds heat easier than a low pro sport tire.
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Last edited by lewdog998; 05-04-2022 at 06:33 PM.
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