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Old 08-01-2015, 11:33 AM   #1
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another tire pressure question

We have constancy ly188 tires these are an ST load range E And speed rating L with max psi 80 cold. They are ST235/80R16 The tires are rated to 3520 lbs each and are filked with nitrogen. My fiver weighs 12380 lbs total loaded Wright. 2620 lbs of that is pin weight. Should I be running at 80 psi or lower? If lower, what should I be at? I know these are China bombs but trying to avoid a blow out on the way to Goshen without putting on new tires right now. Thanks.
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Old 08-01-2015, 01:11 PM   #2
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80 psi to get your full load rating for your tires.
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Old 08-01-2015, 02:39 PM   #3
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My opinion is to run them at max pressure all the time since underinflated tires are probably the number one cause of blowouts. Jerry


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Old 08-01-2015, 03:36 PM   #4
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That's what I was thinking, just wanted to double check. Thanks.
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Old 08-02-2015, 01:02 PM   #5
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Quote:
My opinion is to run them at max pressure all the time since underinflated tires are probably the number one cause of blowouts. Jerry
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Old 08-02-2015, 01:11 PM   #6
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Should I Run Maximum PSI Rating on Trailer Tires Even When Carrying Lighter Load | etrailer.com
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Old 08-02-2015, 01:34 PM   #7
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Ran our MasterTracks at 80 psi last week on the way to the Nashville rally....6 hours at 63-65 mph with one 20 minute stop....TPMS readings showed they never got over 89-90 psi with a temp never exceeding 106-107 degrees....heat fluctuated sometimes due to which side the sun was hitting us.
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Old 08-02-2015, 03:13 PM   #8
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I am glad that someone observed the high temp on the "sunny side " of your vehicle. I had noticed that my 5er tires would vary in tire temp from one side to the other. My only explanation was that was always the side the sun was hitting. ..But I did not want to believe.
Has anyone else observed this???


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Old 08-02-2015, 04:39 PM   #9
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Of course, it always hotter in the sun than the shade. I left Yellowstone a few days ago and it was in the low 50's outside. The shaded tires were both at 50 degrees and the sunny tires were both at 70 degrees. The sun had been out for a few hours.


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Old 08-02-2015, 05:15 PM   #10
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Max PSI with ST tires.
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