Here is a recent question received from a reader of RVtravel.com: “I run 80 psi cold in my tires on my RV (F53 chassis). I often see hot pressure 100 to 105 psi and sometimes a little more on the two tires behind the exhaust pipe. is this normal or is the hot psi too much?” —Mike M.
My reply
I would not consider a 20% to 25% increase “too much.” BUT I am assuming that you have confirmed that you are not exceeding the GAWR (gross axle weight rating) as shown on the RV Certification Label.
We know that most RVs are running near or at the max spec load so you are fully exercising the tire. The tires near the exhaust are reacting to the increase in air temperature, which is both normal and expected.
Where to find more info on RV tire pressure
I have covered this and similar questions about tires on RVtravel.com in the “Maintenance and Repair” section found here. Or click here for all of my posts on RVtravel.com.
Just do a simple search such as “hot tire pressure” and the website will give you a number of posts on that topic. I have also covered similar questions on my personal Blog www.RVTireSafety.net
Checking the above sites can get this and many other questions answered quickly and many times from experts in the topic you are asking about.
Roger Marble
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If you have tire questions, check out Roger’s Blog as well as his posts on RVtravel.com. There are hundreds of posts covering everything to do with tires.
If you still have a question for Roger after searching the above posts, send your inquiries to him using the form below.
MORE POSTS FROM ROGER ON TIRE PRESSURE
- Is the tire pressure too high?
- Should you adjust tire pressure when temps get colder?
- Do not adjust your tire pressure for ambient temperature
- Understanding what temperature change does to tire pressure
RVT1206
Thank you for the reminder of the address of your blog, Roger! Have a great week and safe travels!