Proper tire pressure?

I thought this sounded dangerous to me, especially traveling at 75 to 80 mph pulling a trailer. I have been on trips where I use the interstates, but I hold my speed to no more than 65 even in the areas where the speed limit is 70. It makes sense to be because it feels a lot safer, and I think it saves the trailer tires too.

Thanks for the responses to my post!

Then you first have to calculate what the minimum pressure is for the loads on the tires.
If your tires are overrated, wich I think they are not, you can use lower pressure.
If the tires are yust enaugh , you are even allowed to go 10psi over that 50 psi, because its not the maximum pressure of the tire.

If your friend lowers the presssure until it feels good, he probably lowers under the border at wich the tires are save.
Gripp and comfort get even better if your pressure is below the damage border, but at a sertain moment you get an accident by blowing tire.

So give the GAWR's and GVWR of the trailer and number of tires that load is resting on, and the maximum load and pressure-rating ( Probably C-load/6ply because of the AT pressure of 50 psi) , and I will calculate with spreadsheet i made , a pressure with some reserve for little overloading and unequal loading R/L.

It is always better to weigh the vehicle, but if you havent , we have to do with the GAWR's and GVWR( gross vehicle weight rating).

Ditto on the wrong. Your friend is a disaster waiting to happen. Stopping a TT on a dime is a tough job at 60ish, but 75 - 80? Forget it. Use the recommended tire pressure and check it frequently....when cold. And have a light foot. You'll also be happier at the gas pump.

Let us know your friends schedule so we can stay out of his way!

Friend is WRONG!!

I run the max air p on what ever RV I have. At the present time 60. Seldom drive over 62 MPH.Your friend is wrong !!

75 to 80 MPH with a trailer is suicide. Sorry, but you're doing the right thing. As far as pressures, A load pressure chart will work. Mine are Max 50, but I am no where near the Max Load, so I run 45, which is still more than enough for the load based on the chart.

Mcamper wrote:


I am hoping for some opinions on this. Am I being too particular with my tires?

No you are not...and your "friend" should by MORE particular with his (and his speed).

You are doing it right. Don't listen to your friend.