Tire Pressure

Tires of good pressure are between 100 and 105 psi in fair weather (spring room temperature)

Obviously the pressure will rise when hot and drop when real cold; never adjust the pressure based on the reading during these conditions.

 

Inside + outside wear with minimal wear on middle means 1 thing...................underinflated tires.

 

I have been experimenting with helium. I have found thst inflating all 18 tires to 107.5 pxi works exceptionally well. Plus I have the benefit of about a 900 lb payload increase and a much improved ride. The truck seems to float along.

 

Since you use helium, do you also use one of these docking towers so that your rig doesn't float away.??

 

one word of caution, avoid high temps, those things have been known to go boom in the night

 

The opinion I like is getting more than 300K out of my steers and drives. Loads, temperatures, and conditions vary so much, one could be out there adjusting pressures every day. Twice a day. I tried a variety of pressures, and settled at 100psi. They go up more in hot weather, less in cold weather. Mostly I figure 300K miles/set is good enough for me and my budget and my safety requirements.

 

BM I did go to the Michelin load/inflation site and got some of their information. First thing I saw: "don't use the pressure on the tire because it does not indicate the pressure needed in your tire." Hmmm - OK for that. The load inflation table shows some crazy numbers. I have a 80K registration, 16ply steers, and Michelin says 100psi at 12,380 is a good max. Then I saw the inflation for 22,700 dual tires - 110psi. I'm not knowledgable enough to say much, except no way I'm pumping my drives up to 110psi cold inflation. At 100psi, my steady inflation number, they say I can go to 21,040 for my drives. I don't now, I'm getting good wear and safety performance at 100psi, but now I'm thinking about it again. Keith says I'm overinflated - Michelin says I'm underinflated. Guess I got it!

 

it appears to me whoever pays the bill gets to decide who is right