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Old 09-15-2016, 05:51 PM   #41
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Originally Posted by Stu & Filo. T View Post
I've read twice now that on RV & semi truck tires the psi stamped on the tire is a minimum pressure, This was mentioned twice now in motorhome magazine.
Either way, the tires will say max or min. They don't tend to leave these things ambiguous. I'd go check what my tires say, but I am lazy.
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Old 09-15-2016, 06:59 PM   #42
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Quote:
Originally Posted by Stu & Filo. T View Post
I've read twice now that on RV & semi truck tires the psi stamped on the tire is a minimum pressure, This was mentioned twice now in motorhome magazine.


That's scary..

Maybe there are special RV tires that have a min and max printed?

I'll admit that I'd enjoy seeing an RV with tires inflated to 150psi bouncing down the road like a basketball!
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Old 09-15-2016, 08:05 PM   #43
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It certainly COULD be. But in my own experience... I never noticed a tire marked with a minimum inflation number. I've only seen maximum listed on the sidewall.
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Old 09-16-2016, 06:40 AM   #44
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mine actually have the word Max so it wasnt confusion.. and I looked up the specs online for my tires and it says 120 PSI max cold. I dont remember a minimum pressure being stamped on the sidewall.. I'll have to look when im at the bus again..

both my drives and my steers have the same pressure markings on them..

-Christopher
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Old 09-16-2016, 09:38 AM   #45
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Never saw a tire marked with a "minimum" pressure...only "Max Cold".
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Old 09-16-2016, 01:30 PM   #46
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Ok I found one article in the January 2014 Motorhome Mag under the tech advice section, I tried scanning and attaching but it didn't work so heres a quick break down of question & answer.

Guy went to Les Schwab for tires balance & psi check,Les said to run tires at 90 psi instead of the 120 psi marked on tire.

The tech guys answer is; Their right in suggesting the lower psi," The psi molded into the sidewall is the tire manufacturer's" MINIMUM PRESSURE" when the tire is "CARRYING it's MAXIMUM RATED LOAD"

I knew I read something to the effect i just couldn't remember exact wording

Oh & lets make sure we're talking the same thing, I'm not talking tires on your car's or 1 ton trucks or short busses, i'm talking over the road truck & bus/RV tires
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Old 09-26-2016, 12:25 PM   #47
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My 34' Thomas with a 3126b (electronic injection, 7.2 liter) does about 7-8 mpg usually with highway cruising. I've gotten 9 mpg like twice. My bus is pretty heavy at over 24,000 lbs. Not sure if this is normal for mine or not, but it has always been about that mpg for me.
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Old 11-03-2016, 09:29 PM   #48
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Guys I am beyond frustrated. Tire pressure ok. All new filters. And still only getting 8mpg no matter what. A pedal to the metal, driving conservatively. Idk what's going on. Everyone says they get 8-12 and I'm stuck at 8 and it's absolutely killing me .
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Old 11-03-2016, 09:42 PM   #49
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Not sure where mine is just yet.... filled the fuel tank when I first got it but haven't driven far enough to get a feel for the mileage... will certainly update when I know.
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Old 11-03-2016, 09:51 PM   #50
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Originally Posted by bread519 View Post
Guys I am beyond frustrated. Tire pressure ok. All new filters. And still only getting 8mpg no matter what. A pedal to the metal, driving conservatively. Idk what's going on. Everyone says they get 8-12 and I'm stuck at 8 and it's absolutely killing me .
I think I calculated mine at around 8 or so.
Not having an OD may be why we don't do quite as well as some who do?
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