TPMS - Tire Pressure Increase
Tire pressure increases while traveling. In researching I have seen where a 25% increase in pressure is fine. So at 65PSI I could expect to see pressure up to around around 81 and all should be good. ...
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What you post is absolutely true. Also, hot days increase pressure. I set my high pressure limit at 20% over the inflation pressure, so your 25% figure is well within reason.
