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I’m running 285/55/22 trail grapplers on my 2016.whats a good air pressure to run so my tires don’t eat away?
 

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I normally run 10 to 15 psi under max pressure up front and 20 to 25 under max pressure in the rear, that is when unloaded of course.
You can always do the chalk test if you are unsure what pressure to run.
 

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I run 70 cold adjusted year round. Meaning 70 psi cold at 80 ambient and 70psi cold at 45 ambient. If loaded go to 80 psi cold ambient....

Just did my winter adjustment when I had to replace a tire couple of weeks ago. Ruined it at the ranch :(
 

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What's the chalk test? I have been running my Toyo AT2's @ 65 psi all around when running empty. They seem to be wearing quite nicely actually although oddly they start howling around the time a rotation is needed. That I found interesting.
 
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