There is alot of good ideas here. If I inflate my tires to max it would be 80 psi. No Joke it says 80 psi cold. I aired them up to 65 psi and it felt like I was driving on bricks. Rattled the hell out of my rig too. I ride at 55 psi. and it doesn`t seem to bad.
I run my tires at 55 and it's not so bad, I also removed my bud builts to recoat them and hell I feel like I'm drivin a sportscar, the pickup is insane, couldnt tell ya about savin gas because I was hammerin the peadal all day.