misterzee

So, I bought some used tires and wheels... nice Bridgestone AT 10.5X31 on there, but the previous owner had run them at about 45lbs for years. So, the middles are thinner than the outside... I figured, for just schlepping around town I can lower the pressure to... 26-28 perhaps... wear on those edges... use them up. well....
I noticed the handling is not quite what it was, and my mpg went from 19-20 to 14-17
"DANG IT"

4Runner1988

Tire pressure plays more of a role than most think, in handling and MPG.

many think that once air'd to a specific number....it wont move from that point...

sorry to hear that....bummer.....pay much???

misterzee

nah, I'll put them up to 30 and wear em out on the local streets... then get a new set of BFGs...

da_bigg_wigg

What do you typically run?

MudHippy

I throw my advice on the table, MAX pressure stated on the tire, regardless of what the vehicle manufacturer recommends. Your handling and mpg will be MAX as well, BUT you may also wear on your tires and suspension components unduly. Depending on many variables, mostly how you drive.

fork

i run my bfg mt's at 29psi up front and 32psi in the rear. i've ran them at 45psi and noticed improved gas mileage. but torsion crank lift + 45psi tires = bumpy ride... feeling every bump in the road is just not worth it, not to mention it probably isn't good for the tires. if i travelled any less i would probably run them all in the low 20s just for comfort

ken.vs.ryu

I run 40 lbs and I love my mpg - handles well for me.

X-AWDriver

I run at 35psi and have no wear issues but it is important to check it regualrly since up and down temperatures will lower psi.

LS1Steve

driving creates friction which creates heat which raises the pressure. if you start out at max when at ambient temp, once you hit the highway that pressure will be too high and actually unsafe.

budddavid

I believe the max tire pressure rating on the side of the tire is for a cold tire, so even with the increase of temp causing an increase in tire pressure you should still be just fine.

nermalgod

I used to run at 45psi until I drove a wash-boarded road at night and threw my alignment way out. Not to mention the coins in the ashtray, my fillings, and my girlfriend practically out the window. Higher tire pressure doesn't equate to better handling when the suspension can't keep the wheels on the ground.