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Discussion Starter #1
I run 285/70/17 Terra Grapplers and keep them at 34-35 psi. Interesting to see what everyone keeps their tires at and what psi for different situations.

Thanks.

Merc
 

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50 PSI everyday driving, i have load range E tires
 
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38-40, with E-rated tires here too.
 
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Discussion Starter #4
Do you think if I ran mine which are E rated at 38-40 that it would help gas mileage?

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Merc
 

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personally i think you should run air pressure wherever your tires wear the flattest it'll save you more money in tires than gas probably, just my 2cents
 

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My truck gets driven in the dirt a lot so my tires are normally pretty low unless I have to drive to drive a long distance. Right now they are at 25 in the front and 20 in the rear. For highway driving I would put them at 35.
 

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I run my stocks at 35 until the stupid dealer gets it, then they put them back down to 30.
 

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I'm running 45psi in my E rated Toyos since that is about what I need to run to achieve the same load capacity/rating of the stock passenger tires.
 

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Do you think if I ran mine which are E rated at 38-40 that it would help gas mileage?

Thanks.

Merc
Probably a very slight amount. I run mine at that spec because I've found it gives me fairly even wear.
 
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Discussion Starter #11
I went to 38 yesterday on a trip back for Oklahoma. Ran great on Hwy but on city roads, the extra 3 lbs from 35 was way different. Much smoother on city roads and bumps with 35. A much better ride IMO.

Merc
 
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