I'm running 20" rims with load rated E Goodyear Wrangler AT/S 275/65/20 Tires. What would the recommended pressure be?

 

Between 38 and 40 psi have served me well over the last 4 years on my stock 20's and Cooper tyres. (discoverer HT +'s and LTZ Zeon's)
Al.

 

on those tires the recommended is 55psi but i run 45psi so it dont mess with my gas milage and it dont wear down my tires as fast

 

I have been a fleet mechanic for 23 years in a major utility in So Cal, all the tire dealers always recommended tire pressure always be as close to maximun to get the best milage and wear, even our off road vehicles, just my 2 cents

 

That's 80psi though and I think that's too much for daily driving. It's riding rough at 75psi right now. Thinking I'm going to drop to 45psi.

 

no if they are e-rated then its perfectly fine, 80psi is what they are supposed to be so run them at 80, its what is recommended for tire, my dad has a set and when i read 80 psi i was like holy crap thats to much but thats what they are rated for its fine

 

That's fine they will run smoother and softer, but tires wont' last that long and have a little worse mpg

 

It won't kill your tire per say to run them at the max or close to. However I have noticed not on the truck on a previous car that if you run that close to maximum you will wear out the tire faster. That close you're probably not getting a flat footprint. The center of your tire will wear out faster. I run mine at 45 the max is 65 for mine. It definitely like said before gives you a much better ride. This is what was found on a tire website:

A lot of people check the pressure listed on the tires themselves, but that's actually the wrong place to look. The number on the tire is the maximum allowable air pressure — not the recommended pressure for that tire when used on your vehicle.
The recommended tire pressure is almost always lower than the maximum tire pressure. Check your owner's manual to find out where to look on your vehicle to find the recommended measurement. This number usually is indicated either on the driver's door pillar, the glove compartment door or sometimes on the gas filler door.

 

Ive always put 5-10 psi below max in them no matter what the max is.. I used to work in a tire shop for 2 years after highschool.. In the probably over 1000 tires of mounted ive never had a problem.. The way I look at it, you bought/have load rating E tires, those are the stiffest for light trucks, they are made for hauling things and heavy loads. Alot of guys will run them for that exact purpose on 2500/3500 trucks instead of D rating tires.. If you want a softer ride buy the proper tire.. if you dont ever haul any heavy loads or just use the truck for the occasional furniture move for a buddy then buy a D or C rating tire..