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Old 09-07-2014, 06:43 PM   #1
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hot weather tire inflation

Just put new set of tires on,tire dealer only put 70psi not 80psi in i will be on the road tomorrow morning early.
want to air tires to 80psi,it is 95 degrees out is ok to air tires up to 80psi,or should I just put 75psi in?
I was camping and had them do two tires at a time,didn't check pressure
until al tires were back on trailer.
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Old 09-07-2014, 07:26 PM   #2
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Unless the tires have been sitting in the sun for an extended period , put 80 psi in them.
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Old 09-07-2014, 07:58 PM   #3
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Always set your tire pressure to 80 pounds regardless of the ambient temperature. The tires will run cooler, despite the hotter temperatures, if they are properly inflated. Under-inflation leads to higher temperatures and premature tire failure.
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Old 09-08-2014, 10:36 AM   #4
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Originally Posted by Grandpere View Post
Always set your tire pressure to 80 pounds regardless of the ambient temperature. The tires will run cooler, despite the hotter temperatures, if they are properly inflated. Under-inflation leads to higher temperatures and premature tire failure.
That's what I did when I had a 5th wheel...start the day at 80 all around.
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Old 09-09-2014, 08:37 PM   #5
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I don't know if 80 psi is the right value for your tires and load, but go ahead and put the air in now. You should set the tire pressure when the tire is "cold", meaning not driven on for several hours. Air temperature is not a factor - just whether it has been driven on recently. Air up tonight so you are ready to go in the morning.
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Old 09-10-2014, 12:22 PM   #6
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My trick is to over pressure the tires the day before departure, then let out the extra the next morning during the cool of the morning!

Ed
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Old 09-11-2014, 04:48 PM   #7
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My trick is to over pressure the tires the day before departure, then let out the extra the next morning during the cool of the morning!

Ed
Sorry, but I don't get it. In the morning, if the temp is cooler, your TP will be lower, not higher. If filling the tires the day prior, put whatever pressure in them that will be 80 when you leave in the morning.
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