Good tire pressure for gas millage and handleing

[97greenmonster]

Ok ive been doing some talking on a camry forum about gas millage, and some of them disagree on running your tires at or above the recomended pressure for tire wear and what not, heres the link to it, but i was just wondering what your guys experience with the tire pressure is and if what they say is true. I remember reading that alot of you run above max pressure. Thanks!
Clay

http://www.camryforums.com/m_5233/mpage_1/key_/tm.htm#5260

 

[UtahX]

For me I try to stay at 32 psi, but in the backcountry/sand a little less is good.

 

[Anime]

The earlier Explorers had a recommended pressure of just 26 psi, so going to the pressure for later models really improves mileage and handling. Really, the pressure you want depends on the tires and the driver. LT tires that can take 50psi can be run at 35-45psi and be fine for one person, but even passenger tires run at 30psi could be downright uncomfortable on bumps for someone else. My advice is to go with the max psi that gives even tire wear and doesn't rattle your teeth.

 

[Kinserin]

When I had my 35s installed the guy put'em at 30psi iirc, and they were wearing oddly, so I dropped it down to 25ish if not a little less and the wear seems to be more normal now. To me that air pressure seems low, but only time will tell I guess. I just hope I can air down to like 15psi on the trail and not blow a bead lol guess I'll find out!

 

[rookieshooter]

I would think that a little over recommended would give you less roll resistance and thus a better MPG. But the down side is you don't get something for nothing. Now your going to get less mileage on your tires which means you'll be spending more money sooner on new tires. So you spend less money on gas but more on tires. It's still all about the $$$ it takes to drive.

Sometimes I think about all the money one spends on getting better MPGs but don't take into consideration about how much you spend on stuff trying to get the nth degree of milage.

 

[aldive]

To get the mileage that I am able to acheive ( http://www.explorerforum.com/forums/showthread.php?t=44372&highlight=quest ), I run 40-42 psig.

 

[IZwack]

Next time you get tires, get the skinniest tire width -- this typically leads to higher MPG.

 

[97greenmonster]

Well, whats the skinniest tire with for an ex, i i have P235/75R15's right now

 

[IZwack]

Well, whats the skinniest tire with for an ex, i i have P235/75R15's right now

The first number 'aaa' of the syntax [aaa]/[bb]r[cc] is the tire width.

But the [bb] number is dependant on the [aaa] number and [bb] is the side-wall height in percentage of the tire width. So in your current configuratoin, your tire width is 235 mm x .75 = 176 mm (which is just a little below 7") . That means the sidewall of your tire is just a hair under 7 inches. The tire diameter is then calculated by doubling the sidewall number (since there are two sidewalls oposite from each other on the tire) and adding the wheel diameter -- which in your case is 15". So 7+7+15 about equals 29" inches.

You can try going with th 225/75R15 tire.

Also one thing you also might want to look at is the tire's rolling coefficient of friction