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Originally Posted by aesj2
Don't run whaterever you like or fill to 75% of the max. If you own a newer car or truck go out to it and look inside the drivers door for the tire label. It will give the correct pressures for the size of tire used on the vehicle. Then look at the tire and see that the pressure rating is much higher. Just because you can fill a tire to 80 psi, doesn't mean that it will work at that pressure. More air can mean more heat which will mean more pressure. Be careful.
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This is inacurate info, and is a common (misguided) opinion.
Again, we can look as the ford explorer. The tires are rated at 40 to 50 or so max. (I am guessing on that) When ford said run the tires at 24 (!!!!) people died.
Low tire presure creates heat, and the glue holding the tire together can only handle so much heat.
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Originally Posted by 67ChevyC10Stepside
do what you want....we tow a 18000 pound gooseneck trailer and have e range tires for that reason on a big 4wd chevy....we have run next to no air and have hit the 85 max....dont make much difference in ride cause it has 2.5 ton springs on it. get more conventional tires and dont have to worry.
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Again, bad advice. ESPECIALLY if you are towing/hauling loads. The side wall supports the weight of your vehicle. The pressure inside the tire supports the side wall of the tire. If the air pressure is low, then the sidewalls can not be supported properly. You then get non rigid sidewalls that will let the tire flex and squirm. Zou can frequently feel it in the steering, the vehicle feels loose...or even like a boat. Wandering is another problem, not to mention odd tire wear. Plus there is the whole blow out issue like I mentioned before.