Quote:
Originally Posted by sport2004
do you run that pressure all the way around? Right now i have the same size LT M's and run 33 in the rear and 35 front. Currently not trailerng or carrying extra weight in the rear. i rotate every 5K miles. wear and ride comfort is fine. if i'm doing something wrong, it sure doesn't show, but i do have the impression Michelin quality has something to do with that.
if no-one can chime in on whether this is wrong, i will probably call Michelin and/or research elsewhere.
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You should ask them anyway, I suppose they will reply something in the 42-44 range. They will calculate it so as to ensure the same % of spare capacity that the OEM P-metric tire had.
Driving lower first eliminates that safety buffer.
You can bet they will say it is wrong to run them at 35/33 because at those pressures the capacity is decreased by a lot (but then there is the issue of what size one is running).
People get away with a lot but I did drive over a burst MT from a Jeep on the highway last week. My non-expert understanding is that driving LTs on the highway consistently under 35 if really pushing it.
I am sure there is a way to calculate the load capacity at various pressures.