Proper Cold and Hot Tire Pressure Off Road
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07-31-2009, 10:17 AM
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07-31-2009, 10:51 AM
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First, never check a tire after it has been driven on.
When cold you need to be at 40 all the way around, plus or minus 2 #'s. Go much lower and you will start loosing MPG, go higher, except when heavily loaded and it will ride to rough and can wear the center section of the tread out too fast.
As for airing down, if it has a 3 ply rated side wall you can go to 18#'s, any lower and you can roll a bead.
When cold you need to be at 40 all the way around, plus or minus 2 #'s. Go much lower and you will start loosing MPG, go higher, except when heavily loaded and it will ride to rough and can wear the center section of the tread out too fast.
As for airing down, if it has a 3 ply rated side wall you can go to 18#'s, any lower and you can roll a bead.
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