Quote:
Originally Posted by OregonPerson
I am confused about the proper tire pressure I should inflate my tires to when the load is less than the max load weight.
I see some advocate using the max pressure on the sidewalls regardless of load while others say to reduce it by the percentage of the max load you are carrying, which is it??
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I advocate using the max pressure on the sidewalls regardless of load. Why? Because at that pressure sidewall flex is at its minimum so the tire runs cooler and helps reduce the likelihood of trailer sway (especially for TT). Also, every inflation chart I've seen from tire manufacturers (I certainly haven't seen all of them) show the tire weight carrying capacity is at its highest with the tire air pressure at the maximum shown on the tire sidewall.
BTW, if you estimate the load and reduce the pressure by some percent, but are actually carrying more load than you think you are (or the percent is wrong), the tire can be under-inflated. NO ONE I am aware of advocates that.
If you want to reduce the tire pressure below the maximum, do it safely: Check the manufacture's inflation chart for that specific tire and weigh to find the actual load the tire is carrying.
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