What tire pressure? 35x12.50R20 Toyo Open Country M/T - Ford Powerstroke Diesel Forum
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Old 01-13-2011, 03:34 PM
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What tire pressure? 35x12.50R20 Toyo Open Country M/T

I just picked up a set of Toyo Open Country M/T's 35x12.5x20, I want to get the most mileage out of these tires.

So, what pressure should I run?

Load range E, and sidewall states that the max psi is 65.

Let me know

Thanks
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Old 01-13-2011, 03:50 PM
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Some folks subscribe to the chaulk test.

Draw lines across the tread with chaulk and then drive on the tires. Adjust pressure so that the lines across the tread scuff off evenly.
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Old 01-14-2011, 01:41 PM
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What's everyone running in these? Empty load
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Old 01-16-2011, 02:11 PM
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I have the same tires and size. I run mine at 60 all around. Some think it's too much, but I have 63,000 on them and still have about 15% tread. Mine never leave pavement either.
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Old 01-18-2011, 05:31 AM
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60psi cold?
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Old 01-18-2011, 06:25 AM
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Quote:
Originally Posted by TXTech11 View Post
60psi cold?
Correct, all PSI ratings are based on a cold temperature.

If all your worried about is the way it rides, then put in the amount of air that gives you the ride you want. If your worried about treadware then use the grease pen method to find out what the correct PSI should be for a loaded/unloaded truck.
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Old 01-18-2011, 06:44 AM
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in all of our pickups that have anything from 245/75/16 and up in sizes i run 60-62 psi
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Old 01-20-2011, 11:45 AM
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I run 60 cold. This is my 6th set. I usually get 70k miles out of them. No major hauling.
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Old 03-16-2013, 07:20 AM
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How do you get the tpms to stop flashing at that low pressure?
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Old 03-16-2013, 09:24 AM
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Re: What tire pressure? 35x12.50R20 Toyo Open Country M/T

If you have sensors that are set at 80 psi from the factory, Ford can reflash the sensors to 60 for you. They do it for my customers all the time.
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