Tire pressure

What you all running for all terrain driving? Post which truck model too!

Asking because saw a post of a guy running at 41psi to improve gas mileage. Mines been around 32 since I bought it.

 

My truck came off the lot at 38 psi at all 4 corners. I left it that way for a month before dropping to 31 psi. Too many variables to make any judgements about economy relating to pressure but here's the chart so far:



I'll be leaving it at 31, at least until these tires are dead.

As to "all-terrain driving" pressures, raising pressure off pavement is a terrible idea. I haven't really nailed down a good setting yet, but 20 psi all around seemed about right on my last outing. My need to push that up a little when fully loaded. I'd like to go lower, but without a load E rating I just don't trust the sidewalls much lower.

 

35-37PSI all around - MGM DCSB TRD Sport 4wd MT Nitto Terra Grappler G2 <-- good so far everywhere I've been including 85mph highway.

 

Some guidelines:

40+ psi (for tires that are rated for it): better fuel economy, harsher ride
Low 30s psi: "normal"
15-20 psi: increased off-road traction, greater puncture resistance, but can cause overheating and sidewall damage if run at highway speeds