tire pressures

[Chebytrk]

Door sticker Tire pressure

Although the door sticker states 80psi rear & 65psi front for my RV. My question is during summer the 80psi is going to increase due to road drive & outside temp. I've seen mine increase 4-6digits. Is this bad? What increase is considered safe? Same with front tires. I also noticed that each tire psi changes/increases differently while driving. Is this ok?

 

[Chuck v]

Those temperature related changes in air pressure reading are all factored into the design and the nominal pressure recommendations -- that is why the tire sidewall and all the information about airing up the tires say to set the pressure COLD. I would imagine the sticker also mentions to make the pressure measurements/adjustment with cold tires...


By the way, "Cold" means not driven on in the last 3-4 hours. The required pressure is stated independent of what the ambient is...


Chuck