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Old 07-03-2013, 03:34 PM   #1
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PSI for stock JK

Is there a recommended PSI for stock wheels. I have a 2013 JKUR with no mods as yet. I was wondering going lower would give me a much more comfortable ride.

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Old 07-03-2013, 03:40 PM   #2
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Is there a recommended PSI for stock wheels. I have a 2013 JKUR with no mods as yet. I was wondering going lower would give me a much more comfortable ride.
The factory recommended tire pressure is on the drivers door sticker and that is what I would use.
Lowering tire pressure causes less fuel mileage, less power, more tire side roll when cornering and excessive tire wear, and if too low will shorten the life of the tire! I don't recommend it.

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Old 07-03-2013, 03:42 PM   #3
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Thanks Miser. I was looking at the other lower PSI threads and wanted an opinion.
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Old 07-03-2013, 03:47 PM   #4
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For what it's worth, my dealer had my stock PSI set at 44/46...I lowered to 34 and the ride really improved with no detrimental issues regarding fuel mileage or a "low tire" warning light. It's only been 1K miles on my JKR, but I doubt I'll see anything noteworthy in regards to excessive tire wear.

The dealers run higher PSI to help improve fuel mileage but it will seriously wear the centers of the tires much quicker.
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Old 07-03-2013, 03:48 PM   #5
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Mine is at 44, right now. I may run a little lower and do a test.
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Old 07-03-2013, 03:52 PM   #6
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There is nothing wrong with lowering the tire pressure to suit your needs. Mine from the factory was set at 47psi. The thing rode awful!!!! Went down to 36 and it was night and day better. I'm now running my duratracs at 35psi and they are doing great there.
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Old 07-03-2013, 03:52 PM   #7
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I ran 34/35 in my stockers no issue even wear all around
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Old 07-03-2013, 03:59 PM   #8
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225/75/16 = 35-37 max cold psi
255/75/17 = 35-37 max cold psi
255/70/18 = 35-37 max cold psi
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Old 07-04-2013, 04:50 AM   #9
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What could I buy to do the tire pressure myself?
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Old 07-04-2013, 05:24 AM   #10
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What could I buy to do the tire pressure myself?
You mean like a compressor and a pressure gauge?
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Old 07-04-2013, 05:26 AM   #11
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Most any one of these will work just fine to check tire pressure. Lust let some air out, check the pressure. If it's still too high, let more out. If you let too much out, head out to a gas station and fill it back up - or you could buy a small compressor to fill them back up. It's nice to have a small compressor around the house.

Depending on how much you want to spend, there's a compressor for every budget. Some folks that off road a lot have on board air compressors on their rigs.

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