Hi Mike, first thing I did was go to a CAT scale and get weights for the front and rear axles which is what I used to get the recommended pressures on Michelin's guide for the tires. That's why I'm confused why the dealer said run max psi for the tires, when according to my weights and the chart, I should be running far less...
There is some faint cracking on the sidewalls, so I was thinking of maybe seeing if Michelin would prorate them and let me trade up to the XPS rib tires...
Originally Posted by MikeRP
You will need to go to a certified truck scale and weigh your rv. That will get you the axle weight front and rear as well as the overall weight. Additionally as a refinement you can weigh each side separately so you know the exact weight on each side of the front and rear axles. I did not do this.
The tires should be R 225/75 r16 E rated tires. Michelin tire tells you exactly when they were made on the sidewall. If they were made 5 years or more ago, replace them.
You can also look for any cracking on the sidewalks. My tires fun 75 psi front and 80 psi on the rear duals. Some dealers are conservative on the 80 psi. But it makes the steering a little loose if you run too much air in the front.