I surrender on tire pressure...

[David Suesz]

I still have my note from Ford Technical Assistance telling me to use 26 psi, but with so much info to the contrary I decided to cross check with another manufacturer, who has nothing to do with the Ford tire controversy. My brother has a Jeep Cherokee, AWD, same weight, same tires. The Chrysler Corp tire tag specifies 33 psi F/R.

 

[302Xplorer]

To be safe, you need to run at least 32 psi.
I run my psi between 38-40

 

[ExplorerDMB]

To be safe, you need to run at least 32 psi.
I run my psi between 38-40

woah woah -- before you go pumping your tires to 40 psi.... please check your tires rating. Every tire has a psi rating -- Michilins MTX L/S take a max of 35 psi. BFG All-Terrains take a max of 50 psi. There is a HUGE difference here and if you over inflate you will get center tire wear and run the chance of blowing your tire out! Just be safe. For 35 psi tires, the lowest I would go is 28 psi. For 44 psi tires, nothing lower than 35. And for 50 psi tires, 38-45 psi is fine!

-Drew

 

[trucku]

My truck specs for 30 in front and 35 in rear if i recall correctly on gas lid. Right now when warmed up in this mid warm weather they are at 34lbs in front and 34lbs in back. I will readjust them as weather gets hotter to maintain that pressure. Truck handles fine this way and my daughter doesn't get harsh ride in back. If i go as low as 30lbs your gonna cup them tires with uneven wear and a lower pressure will give you unsafe handling. Remeber test your pressure after the tires are warmed up.

 

[302Xplorer]

woah woah -- before you go pumping your tires to 40 psi.... please check your tires rating. Every tire has a psi rating -- Michilins MTX L/S take a max of 35 psi. BFG All-Terrains take a max of 50 psi. There is a HUGE difference here and if you over inflate you will get center tire wear and run the chance of blowing your tire out! Just be safe. For 35 psi tires, the lowest I would go is 28 psi. For 44 psi tires, nothing lower than 35. And for 50 psi tires, 38-45 psi is fine!

-Drew

DOn't know if this was aimed at me or the original poster, but my tires have a max of 44psi so the range that I use is well within the proper range. 28 in any tire on an suv is too low and is not only a danger to you but the people on the road with you.

 

[302Xplorer]

THe rule of thumb that I use is 90% the max pressure the tire is rated for and ignore the autos mfg recommendation.

 

[Bruce-L]

My 31's are rated for 50 psi at max load. Two summers ago I experimented with tire pressure on a weekly basis for the whole summer and found that 40 psi worked best for me in terms of comfort, mileage, and tire wear. Unless you carry a lot of weight regularly 80 to 90 percent of max is probably a good rule.

 

[302Xplorer]

I want to run the max pressure w/o uneven wear to maximize gas milage.

On a side note, i've noticed a big increase in my gas milage in the past month. I get like 450-465 a tank. Compared to the 400 I got before that it makes me wonder if it's the ethanol?

 

[jp450]

On a side note, i've noticed a big increase in my gas milage in the past month. I get like 450-465 a tank. Compared to the 400 I got before that it makes me wonder if it's the ethanol?

I have noted the same thing. Is the 10% ethenol making the diffrence or is it that I am paying almost $3.00 a gallon and am really easy on the gas pedal...

Jeff

 

[Carlos Osornio]

Any one knows what;s the pressure rating for BFG 35 Muds?

 

[floydr007]

The ethanol shouldnt be helping your mileage.. im pretty sure itll hurt it a bit. Its probably the summer blend gas making the difference.

 

[302Xplorer]

The ethanol shouldnt be helping your mileage.. im pretty sure itll hurt it a bit. Its probably the summer blend gas making the difference.

Well, something is going on and I ain't going to complain.

 

[Hartman]

Ford tells you 26psi because of the rollover controversy.

 

[spindlecone]

Just run 38 psi, all will be okay

 

[302Xplorer]

Ford tells you 26psi because of the rollover controversy.

THe 26psi was the cause of the rollover controversy.

 

[trucku]

So 38lbs sound like the magic number.
Think I am gonna try 38 in front and 35 rear see if I get a little better mileage. The rear gets really harsh with anything above 35lbs.

 

[Bruce-L]

You need to run the same pressure all the way around or you're going to get wierd handling and wear. Do 36 psi on all 4 corners.

 

[Gimp]

This CHALK TEST post put up by Gerald about six years ago has served me well on many vehicles for determining a good pressure to run. Might be helpful to some of you, too.