Increasing the TV tire pressure.

I have several trailers and never know in advance what I am going to be towing. I tow at the max pres on the sidewall (50).
I too just leave them set for towing all the time. I've never had a ride problem in a 1/2 ton.
Tires all wear evenly, and I can't forget to air them up for towing.
I too believe it would be worse to have them low when towing than having them too high when empty.

My F-150 says 35 psi also, right on the yellow sticker that lists the payload. Tire sidewall says max of 44. Like others, I increase some when towing. I run 38 in front and 40 in rear. Nothing scientific involved, it just seems about right.

I recently raised mine from 35 to 40 psi and have left them there for every day driving. It seemed to feel a little better towing, and I haven't noticed much rougher ride when not towing.

I use the pressure shown on the tire sidewall and run at the max when towing or empty. I don't want to take the time to keep adjusting the pressure. I just keep 'em filled to the max shown on the sidewall.

rbpru wrote:
I just wondered how many of you increase the TV tire pressure when you tow? ...

I do.

I sometimes lazily neglect to reduce the pressure when done towing, but that is better than lazily not increasing it from the normal pressure to the proper pressure for towing. :)

I get the best performance with about 75 lbs in the back and 40-50 in the front. These are 10 ply tires.
A tire shop set up my tires at bizarre pressures, perhaps a disgruntled employee.. Anyway, before I discovered this, I had a back tire at about 110, the other at 70 and the fronts at 2 different lower levels. I could not understand why it was towing so horribly. I set the pressure properly and its night and day.
Tire pressure is a basic, but a good starting point if you are having issues.

m

Although the door sticker on our HD truck states to run max pressure of 80 psi in our 16' LT LR-E tires, I always air them down when not towing for a more comfortable ride. Return them to near max when towing.

Always inflate the tires to max for towing. After 26K milesthe tires are flat across the tread with no signs of abnorman wear.

I run close to max for the tires.