Tire Pressure Question

Zachary · 2005-09-09T23:06:46+00:00

Hey Everyone, I am new to this site, but not to 4Runners. I owned a 2000 Sport 2WD and loved it. I just purchased a 2005 Sport V8 4x4 and the biggest difference is the ride/handling. My father owns a Sequoia that came with the Dunlop Grandtreks. At about 30,000 miles the tires started to separate. Based on what I have read on this forum, most of you agree. I have also noticed that most of you recommended the Revos. I read the reviews at tirerack and other sites and noticed an overwhelimg support for the Revos, so I paid $670 for the Toyota dealer to install the Revos right away (I sold the Dunlops on ebay for $255). My question is this. The Revos (at least our tire size - 265/65-17) has a max pressure rating of 44psi. The Dunlops were 51psi, but Toyota (per the side door instructions) recommends 32psi. That's a huge difference. Toyota put 32psi in the REVOS and the truck was SMOOOOTH, but I felt that 32psi was too low and thus would cause damage to the tires as I believe it would be under inflated. Then I put it up to 41psi and the truck road rough and very bouncy. My brother also has a Sequoia and he did the same thing. He said that his tires (stock Dunlops) started to show choppy wear and also bounced like a mule. He reduced it down to 32, rotated the tires, and the tires smoothed out. He has about 15,000 miles on them right now. So back to my Revos. I took it back down to 35psi. It's not as bumpy as 41psi, and not as smooth as 32psi. Should I take it down to 32psi or down to about 34? For those of you who have Revos, at what psi do you have your tires? Is 35 the best pressure? Thanks, Zachary

Thread starter Zachary
Start date Sep 10, 2005

TechWrench

Senior Member

Oct 6, 2005

MsMarine said:
I see many threads talking about air pressure. And great if I can change the pressure and get better gas milage. I haven't tried it yet but will.

But why do you get better milage with higher pressure? Less rubber on the road = less drag ?

Higher tire pressure equals less rolling resistance. Therefore it takes less effort to roll vehicle and less effort equals better efficiency and gas milage.