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Old 09-09-2021, 12:09 AM #16
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Originally Posted by Brick Sprickly View Post
We had this issue a few months back on a multi-day trip with another forum member to SE OR. Being in the desert we'd encounter significant temp fluctuations which would also shift psi ~12-15 throughout the day. Combine this with mountainous elevation changes and you'll see lots of differences. Just check it here and there if you're concerned, but as said above, if there's no leak it's not really a problem.
Yup. Don’t stress about it too much.
On a recent southern Utah off-roading trip I aired down to 24 PSI at the trailhead in the morning, air temp was 70F. At the end of the day the air temp was 98F. I was prepared to air up for the pavement but all tires were at 32 PSI so I just drove it back to my lodging. Checked cold tires the next day and brought them up to 34 PSI.
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Old 09-09-2021, 12:57 PM #17
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For seasonal temperature change: roughly 10' F temp drop equals 1 PSI drop in your tires.
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Old 09-09-2021, 03:24 PM #18
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just set it to 35 when you inflate after a good ride. the normal pressure is 32. 20 when off roading. 15 when in the sand. 32 when inflating it when the car is not driven for a few hours.
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Old 09-09-2021, 09:08 PM #19
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I run an ‘18 SR5 with stock size BFG All Terrain T/A KO2’s, load range E. To date, I’ve not dropped from street pressure, 45 psi. That’s because I’m getting older and don’t do as much off roading as I used to.

That said, for years I ran a 2002 Tacoma TRD with stock size BFG’s, load range C. I ran 35 on road, 18-20 off road. Pressure read both when airing down, airing up. I never bothered to allow for tire temperatures. Heck, many times I’d simply run the highway with my tires at off road pressures so I didn’t have to wait 45 minutes waiting for my 12V plug in pump to get back to street pressure, instead airing up with my shop air compressor at home. Those tires took a beating with no ill effects and gave me generally 70,000 miles.

Now, I don’t suggest that others run with low pressures on the highway. What I’m saying is that a few pounds for the short term doesn’t matter; reflecting what others have said here. For accuracy, before you take your rig out the next morning, simply do a quick check and adjust if necessary.
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Old 09-10-2021, 03:44 PM #20
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you need to upgrade to bigger 12v air pump, . driving at highway speed with low pressure is dangerous or maybe too much pressure is more dangerous. you have the best traction though on pavement with lower pressure and lower mpg. lol!

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Originally Posted by DAW89446 View Post
I run an ‘18 SR5 with stock size BFG All Terrain T/A KO2’s, load range E. To date, I’ve not dropped from street pressure, 45 psi. That’s because I’m getting older and don’t do as much off roading as I used to.

That said, for years I ran a 2002 Tacoma TRD with stock size BFG’s, load range C. I ran 35 on road, 18-20 off road. Pressure read both when airing down, airing up. I never bothered to allow for tire temperatures. Heck, many times I’d simply run the highway with my tires at off road pressures so I didn’t have to wait 45 minutes waiting for my 12V plug in pump to get back to street pressure, instead airing up with my shop air compressor at home. Those tires took a beating with no ill effects and gave me generally 70,000 miles.

Now, I don’t suggest that others run with low pressures on the highway. What I’m saying is that a few pounds for the short term doesn’t matter; reflecting what others have said here. For accuracy, before you take your rig out the next morning, simply do a quick check and adjust if necessary.
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