How much PSI are you running in your tires?

I don't haul heavy freight everything I do is under 80,000 pounds. I have been told to run my tires at 100 PSI a while back and that is what I have always gone by. I recently read an article that improper inflation pressure on the tires is one of the highest expenses on a trucking company that can be avoided due to excessive wear and lowered fuel economy. But they never mentioned the proper inflation levels that could help avoid this cost, so it got me curious. Id would appreciate if someone could provide some reputable information.

 

Depends on the tire, but usually I run 120 psi cold in my tires, I dont normally check actual air pressure on a hot tire, won't be accurate.

 

120 steers, 110 all others.

 

thanks for your input, is there any reason why you run it at that pressure?

 

I have found that I get decent tire wear, also I run mostly out west here in the desert and over the years never had a problem. Low tire pressure will make your tire run hot, resulting in blowouts.

 

120 on steers and 110 in my drives also.

 

105 on Truck, 110 on Trailer. A little more, just before winter. Since the temp drop will cause a pressure loss.

 

100 psi but maybe I’m behind the times as well. I was always told 100 in steers and 95 in drives but that came from an old timer so maybe things have changed.

 

If you’re carrying max weight on your steers then they should be aired up to what the sidewall says for max load. That’s usually 110 or 120.

 

I do 110 cold all around. Trailer has auto inflation system set at factory@100 thought it was ok till the shoulders on my tires were worn adjusted it it as close to 110 its 112 . ive tried 100 on steer and drive ive tried 120 110 on 14 ply seems best to me

 

thanks all, i am going to try upping it to 105 and see if i do better then try 110 with the next set of tires and see how that works out.

Also, is anyone using the tire inflation systems like crossfire/catseye that keep tire pressure equalized between dual tires? I just got some after reading that tires with uneven PSI result in tire getting dragged something like 14 feet per mile i hope it will extend my tire life