Should I Run Maximum PSI Rating on Trailer Tires Even When Carrying Lighter Load

Published 11/04/2010

Question:

I am confused, I have ST 235/80/16 Load E tires on my 11,900 GVW RV. Max inflation is 95 psi. Should I inflate to the max even though the tire will carry the load at a lower pressure. Thanks

asked by: Gene M

Expert Reply:

Yes, you always want to have the tires on the trailer at maximum PSI rating of that tire, in your case, 95 PSI. Anytime you run a lower PSI, it significantly reduces the load carrying capacity of the tire. If you were to run a lower PSI, the thicker sidewall of trailer tires would cause the tires to heat up quicker and will reduce the life of the tires.

I have linked and FAQ on tires that you may find as a good reference.

expert reply by: Reno H