Another tire wear/pressure thread

[JCL]

Originally Posted by zigzag

JCL,

I'm talking about pressure gap between hot and ambient temperatures.... It seems that different tire have different gaps, like Michelin has 3-4 gap, VR's 2-3...
Now i'm interested in Bridgestone, how big is the gap?

I know what you are saying, but measuring a hot tire and concluding that it is now overinflated is just plain wrong. You don't know the spec for hot inflation, just cold inflation. Every tire will increase in pressure when driven.

The reason that manufacturers don't publish hot inflation pressures is that they are so variable. How high is the ambient temperature? How hard are you driving it? How far have you driven it?

And that is what you are seeing with your measurement of different tires. There is so much variation from the ambient, driving style, distance, etc, that the make of tire is just not relevant.