btcruzer
missouri
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sidewall of tires give MAXIMUM tire pressure to use with MAXIMUM load but how does one decide what pressure to run with actual load? My case is a hauler with a dry weight of 5200#, minimal water, dry holding tanks, average food/supplies and no toys. Tires says 2540# at 65PSI. if the load per tire is 75% of max rated load per tire would you run 75% on max pressure?
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wild bill
Mira Loma, Ca. USA
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I would run the 65 psi...better fuel mileage, less tire heat and ready for load when you need it.
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JFG
TN
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Trailers should be run at the tire pressure on the side walls
Fred
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coolbreeze01
Redding, Ca
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Max air and two spares.
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skipnchar
Topeka Kansas USA
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You MIGHT get by with lower pressure if your tires are over-sized for the load they're carrying but what would be the advantage in doing so? My advice is to fill your load range D tires to their max. If they're Chinese manufactured tires they'll blow regardless of the pressure you run and if they're GOOD tires they'll last a long time before the tread wears out or age requires they be replaced.
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btcruzer
missouri
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skipnchar wrote:You MIGHT get by with lower pressure if your tires are over-sized for the load they're carrying but what would be the advantage in doing so? My advice is to fill your load range D tires to their max. If they're Chinese manufactured tires they'll blow regardless of the pressure you run and if they're GOOD tires they'll last a long time before the tread wears out or age requires they be replaced.
My pickup came with tires with a max. inflation of 80#. When inflated to that pressure it rode like an iron wheeled lumber wagon. I ran more like 40# PSI for better ride, after 9 years the were doing fine when I traded.
the ride quality isn't a consideration with the trailer. But a balloon blown up tight is much easier to "pop" than a flabby one. This time of year heat buildup is not a worry and this shakedown run will not be a long trip. I've always thought of MAXIMUM as just that. The trailer is rated at around 10,000 and that works out pretty well at 2450 per tire @60PSI. My doctor said a MAXIMUM of 6 beers per day, but I don't always drink that many and he doesn't insist that I do.
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BobWanderer
Perris,Calif,USA
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btcruzer wrote: My doctor said a MAXIMUM of 6 beers per day, but I don't always drink that many and he doesn't insist that I do.
I will volunteer to finish off the Beers you don't consume 
Seriously, I run 75 PSI in our T H with load range "E's", your not going to wear out trailer tires, they blow out, rot out, or get non repairable flats well before they wear out.
I work with a large fleet of trucks/trailers/etc, i can't say I have ever seen a trailer tire wear out from overinflation.
I guess you could go to the scales and get individual weights on each tire, then calculate the proper pressure based on those weights.
I say tire weight and not axel weight, because there could be a large difference. I understand the "baloon theory", but sidewall flex will cause heat buildup, which is NOT good on any tire.
Good luck
Bob J
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coolbreeze01
Redding, Ca
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I like your Dr., but now I recommend 3 spares.
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lincster
Mesa Az
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Always run ST tires at max pressure. They suck as it is, so max pressure helps them live a little longer.
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btcruzer
missouri
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OKAY, I'm convinced ---- 6 if favor of max pressure. Thanks for the input, guys.
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