Load e tire pressure

That sounds like a plan. Much simpler than some of us suggested! LOL

Thanks. And just to clear up the question -the tire was damaged in transit from the factory. A very large screw through the tread. After I posted this, I realized the spare is a load D, so I think I'll just have switch the E for the spare.

fatboy66 wrote:

Huntindog wrote:

fatboy66 wrote:

VintageRacer wrote:
65 psi will be fine. It will ride and roll the same as the other tires.

Brian

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.

On my previous trailer, I had 3 load range 'C' and 1 load range 'D'. I exchanged the 'D' rated tire.

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.
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.

Huntindog wrote:

fatboy66 wrote:

VintageRacer wrote:
65 psi will be fine. It will ride and roll the same as the other tires.

Brian

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.

On my previous trailer, I had 3 load range 'C' and 1 load range 'D'. I exchanged the 'D' rated tire.

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.
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.

Huntindog wrote:

fatboy66 wrote:

VintageRacer wrote:
65 psi will be fine. It will ride and roll the same as the other tires.

Brian

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.

On my previous trailer, I had 3 load range 'C' and 1 load range 'D'. I exchanged the 'D' rated tire.

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.
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.

The procedures for setting recommended tire pressures for motorized vehicles is different. The placard pressure is correct for trailers but there are seldom deviations from the placard pressures unless there is a provision for them in the trailer's owners manual.

Actually when setting tire pressures to the load the bottom line is often omitted. It is, "never use less tire pressure than what is recommended by the vehicle manufacturer".

FastEagle

I would run the new E at 70-75 psi. Why did they replace one tire on your trailer? If it was due to some type of failure i would just go ahead and replace them all! If you wait untill it fails it will leave you on the side of the road if the damage is bad! And they can let go pretty bad at speed!

Check to be sure that your rims are rated for 80psi. Most likely only rated for 75 psi. I ran some E's at 70 psi for about 10,000 miles with no problems. I sold the unit with the tires still on it and in good shape.

fatboy66 wrote:

VintageRacer wrote:
65 psi will be fine. It will ride and roll the same as the other tires.

Brian

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.

On my previous trailer, I had 3 load range 'C' and 1 load range 'D'. I exchanged the 'D' rated tire.

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.
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.

VintageRacer wrote:
65 psi will be fine. It will ride and roll the same as the other tires.

Brian

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.

On my previous trailer, I had 3 load range 'C' and 1 load range 'D'. I exchanged the 'D' rated tire.

Best is to keep the E-load on a bit higher pressure then the D-load.
In the lists you will find in America its is given same loadcapacity for the same pressure of 65 psi, but to laws of nature , the E-load needs a bit higher pressure for the same load.
Thats because E-load is stiffer tire so smaller surface on the road at the same deflection.
I know that adviced is to keep the tires on one ( imaginary) axle at the same pressure , but this small difference of about 5 psi will not be noticed as a problem when measured.

I can also calculate the needed pressure for you for both tires.
Then need the maximum load and that maxloadpressure ( E=80 psi D=65 psi, but written on sidewall with AT ) Also speedcode of tire or if they are ST tires ( max speed 65m/104km/h)
Also the GAWR and GVWR, or better weighed wheel(pair) loads in the way you use the traveltrailer.
Then I can give the real pressure difference , now I estimated it at 5 psi.