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Old 09-14-2011, 11:10 AM   #15
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We travel from Canada to Florida each March & mine will increase 20-25 lbs & go back down when re return home. Dealer said to leave them alone, that this is normal.
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Old 09-14-2011, 11:14 AM   #16
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As your tires heat up the pressure increases. When we start out in the cold our tires can be around 80 PSI and once we're on the highway on a sunny day the pressure will go over 100.
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Old 09-14-2011, 11:19 AM   #17
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I've had the tire pressure go up 35 lbs on desert 120 degree temps. The road temp was probably 150 or more.
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Old 09-14-2011, 12:08 PM   #18
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Originally Posted by bmerpaw View Post
We travel from Canada to Florida each March & mine will increase 20-25 lbs & go back down when re return home. Dealer said to leave them alone, that this is normal.
I used to travel from Wis to Albuquerque in Feb each year. I would air up my tires in my unheated garage with temps below 0. I owned a 97 Adventure with 16" tires. 2 years in a row I would blow out a couple of tires when I got to Albuquerque. After a lot of research I found I was blowing the tires out by over inflation. In following years I would retest my tires after getting in warmer temperatures. I would always have to let air out to get back to normal. When I got back home I would have to re inflate my tires back to normal. It was a pain to have to do this but I never had a blow out again. Now that I have a TST I realize fully what was happening. I had PSI increase do to not only temperature but elevation as well.

Don & Bev Morgan Weyauwega WI, 05 Itasca Horizon 40KD, 400 HP Cummins, Adopted by a great couple, Toad 07 Saturn Vue AWD, Air Force One, TST 510 TPMS, Mayor of Weyauwega 2007 - 2013, Waupaca Co Board Supervisor 2010 - 2014
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