Re: Tire pressure question

Posted by Tim Cole On 2020/6/16 14:51:01

The tire guide does state that the maximum on the sidewall is a cold pressure number. Once the tire is on the road running the pressure will rise. So the next consideration is what the rim is capable of handling. Over inflation will eventually show up as poor tread wear. I never liked over inflation because it beats the hell out of the suspension, frame, and body joints. As well, if the car has an expensive paint job all that hammering will cause cracking.

Packard had a good proving ground so the recommended pressures are probably arrived at after a good amount of study.