E Rated Tire Question

Hey Folks,

I was hoping the tire gurus could chime in. I want to run a larger set of E rated tires but have run them pretty low pressure (35 psi) in the past to make them more comfortable. Does this affect tire wear? I know it slightly reduces MPG but I am more curious about the wear itself.

 

The chalk test worked great for me- they are at 34psi - no signs of abnormal wear.

 

I run my Wildpeak AT3s at 31 psi. 40psi when I'm towing my dirt bike trailer. No problems or premature wear. In fact, I can't seem to wear these tires out. haha 27k miles and counting...

 

The size and weight of the larger tire will be the mpg killer. A lower PSI will affect mpg slightly but not really enough
to warrant the harsher ride of a higher pressure.

 

As long as you aren’t running them TOO low you don’t have to worry. Do a chalk test if you need to.

FWIW I run my 275/70R18 Duratracs at 35-37 unloaded.

 

Thanks for the replies everyone!

 

I run Toyo Open County M/S and keep them at 35 psi and have for years with no issues. I also run E rated tires on my Rav4 and Tacoma. Never had a wear problem