Tire Question

[answered prayer]

I just replaced my trailer tires, and have a question about air pressure. The tire dealer set the air pressure<br />at I think 40 psi. The tires say max load at 50 psi. The sticker on the trailer lists the pressure at something else.<br />Which number should I use???? I came home from the lake yesterday, and the tire side walls were slightly warm.<br />Is this normal??? or could it be related to the tir pressure???<br />Thanks

 

[JB]

Re: Tire Question

Howdy, AP.<br /><br />Trailer tires are intended to run at higher pressures than auto tires.<br /><br />Look at the load rating on the tire. If you are at about half of that 40psi is probably okay. Near the limit? 50psi. In between? 45psi.<br /><br />My tires are rated for 1350lb, my rig weighs about 2000 loaded, so I run 45psi usually, but 50psi when I have added a lot of stuff for a long distance haul.<br /><br />Good luck.

 

[mikecjn]

Re: Tire Question

My trailer and boat run about 3200 pounds and the tires say 50psi. I run right at 50. I tried a little lower and was heating up the sidewalls more than I was comfortable with. Don't want to take a chance at a blowout with that much weight on the highway.

 

[captoats]

Re: Tire Question

Remember, going down the highway, you will probably hit some bumps. The compression load on the tires vary with the up and down movement of the loaded trailer. I run the max sidewall pressure cold and trailer from the midwest to the east coast every summer for 6 years (tandem axle 5,000 load) and never had a tire problem.