Tire pressure

[opus]

If....my tires should be 80# psi cold, what would the pressure be warm?

[chessie4905]

Set them cold, then make a check of the pressure after fully warmed up after a trip of at least 30 minutes. The pressure you see will vary according to how hot the tire is-variable. That's why they spec. setting temp cold. Like setting valves on Detroit when cold.

[opus]

Yes, I know that's the proper way. I won't be able to do that in this case. What I think I will do is check them hot and keep all the pressures at the highest hot temp until I can check them cold.

[chessie4905]

You are constantly driving and not letting it sit for 4 hours or more?

[opus]

No, but it's going to be difficult for this first trip. I've got it close enough for now. I'll check later hot and see how even they are.

[kyle4501]

Tire charts call for 95 psi for my axle weights. I'm running the max on the sidewall (105) cold.

It allows for some air loss before tire damage - in theory . . . .

[Ed Hackenbruch]

I found as a general rule of thumb that my tire pressure would go up by 10-12 percent.

[Utahclaimjumper]

 And the side getting the sun will be higher than the other side.>>>D

[sledhead]

yup I use the laser temp. gun most times I stop and yes the sunny side is 20 + deg f higher then the not in sun side

dave

[opus]

Hey, figured that all in.  Thanks!