Quote:
Originally Posted by bestmapman
The problem with using the door jam recommended tire pressures is that the car manufacturer has no idea what tires are on the car after the OEM tires are replaced. We just bought some new tires with 51 PSI max pressure. It would seem that the tire manufacturer not the car manufacturer is better to determine what is safe and the maximum tire pressure allowed.
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The maximum pressure is irrelevant to what pressure will produce the best mileage, the best handling, or the best traction. All of these will generally be far less than the maximum pressure, except fuel economy.