Load e tire pressure
Stupid question. Dealer had to replace one tire on my new camper. Now I have 3 Towmax 225/75/15 load D ST tires and one Load E. Load E usually need 80lbs pressure but should I keep it at 65lbs same as...
Forum Discussion
fatboy66 wrote:Huntindog wrote:fatboy66 wrote:NO. You only "need" enough air to support the load. Look at just about any cars or trucks tire pressure placard. It will state what size tires and pressure is needed. Then compare that to what is the max on the tires sidewall. It just about always is higher.VintageRacer wrote:Very bad idea. You're just asking for tire trouble. Air tires COLD to max pressure. In this case, I would exchange that tire for another 'D' rated tire.
65 psi will be fine. It will ride and roll the same as the other tires.
Brian
On my previous trailer, I had 3 load range 'C' and 1 load range 'D'. I exchanged the 'D' rated tire.
IE: My dually states 65 psi for the rears and 70 for the fronts. Running more is not necessary, so long as the load rating is not exceeded.
We're not talking about car/truck tire pressure. We're talking trailers. The placard on the side of my trailer lists tires pressure and is the max as stated on the sidewall. You run a tire at less than the stated pressure and your just asking for sidewall trouble. It's pretty clear.
What is clear is that OEM tires are 'just enough' to handle the weight. Thus the maximum pressure is needed. What is not so clear is the pressure needed when going to a higher rated tire. My trailer came with 'C's rated at 2150 per tire. My load is scaled at 1800 per tire. I recently upgraded to 'E' rated tires and am running the maximum pressure that my rim is rated for: 65 lbs. That will support 2500 lbs per tire. I can't see how this is going to cause me problems (by not running 80 lbs.), but time will tell.
