Tire Pressure for Goodyear All Terrain 255/70R for highway driving?

Al13

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What tire pressure are you running on the Goodyear All Terrain 255/70R 18 tires fir highway driving? I am taking a seven hour road trip next month.
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Chalk test?
It's a method of using chalk scraped across your tires and driving a short distance and observing where the chalk disappears, rinse, repeat, until the wear is fairly even. In theory, you can use the chalk wear to identify the correct pressure for your exact tires. Here is a video (a bit goofy but effective) that explains it.

 
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Al13

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Interesting and makes sense.
 

Shawnslady

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I currently have mud tires on, came with my jeep. Thinking about all terrains, think they will make the ride smoother ?? Right now, I bobble all over the frost heaves.
 

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What tire pressure are you running on the Goodyear All Terrain 255/70R 18 tires fir highway driving? I am taking a seven hour road trip next month.
I had this tire and 35 was perfect for me.
 

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I have the 245/70/17's - currently running 34 front and 32 rear hot. I like it. 38-39 ice cold from the dealer. ridiculous.
 
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Al13

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What tire pressure are you running on the Goodyear All Terrain 255/70R 18 tires fir highway driving? I am taking a seven hour road trip next month.
35psi. The dealer had 41psi. My Jeep steers the way it’s supposed to.
 

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What tire pressure are you running on the Goodyear All Terrain 255/70R 18 tires fir highway driving? I am taking a seven hour road trip next month.
Probably about 32-34 PIS. they will fluctuate throughout the day around 2-4 PSI either way depending on outside temp and road temp. The more you drive the hotter the tire = Increase in pressure. Reread you College Physics books.:computerrage:
 
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