Tow vehicle tire pressure question
2500 series dodge truck, 10 ply rated tires Michelin tires pulling a tow behind trailer 5,700# I know the max tire pressure on my Michelin tires is 80 psi, but boy o boy do they ride rough at t...
Forum Discussion
gcloss wrote:
The sticker on the door of my 2012 Ram 2500 with 10-ply E Michelin tires calls for 70 psi in rear and 60 psi in front when cold. I have a TPMS and see the temps rise about 10 psi when the tires heat up.
I would with what the sticker states for your truck.
So you honestly believe that one single pressure setting covers all your carrying needs??:h
Do you really believe that your tires have the same contact patch with 6,500# on the rear axle as it does at the about 2,900# empty.
I adjust for load, run 45 to 50 psi empty, leaning towards 45 psi for traction and ride, and even fully loade with 5er attached run 65 to 70 psi. I weigh about 5,500 to 5,700 on the rear axle loaded, tires can carry 6,830# at 80 psi, that is why I only run 65 to 70 loaded.
BurbMan wrote:
Only way to tell for sure is to run your rear axle over a scale with the TT hooked up and see what you're carrying with the rear tires.
Then go to these Michelin Load Inflation Tables, look up your tire size, then the scales weight, and see what psi you need to safely carry that weight.
100% Correct, weigh loaded and unloaded and inflate based n those loads. Tire wear is one thing it will improve, but far more important is traction and braking!! Even with anti-lock the chance exist for the tires to lock up momentary and the trailer push you sideways.
Many don't think a tire is overinflated as long as you stay under the Max pressure on the sidewall, but if not carrying that Max load, or a large percentage of it , you are overinflated for the load. This means less tread contact with the road.
