Air pressure when not towing

Hi,

Yes you can reduce the pressure a lot and have a softer ride. Many do this. I would still stay above 60 PSI, so that the tire does not flex to much on the freeway, and warm up the tread to much. Yet still will flex a bit when you go over a pot hole or something like that.

These crazy kids wanting to install 22" tires with 35 series low prifile tires don't know what they went through to get balloon tires, and are going back to a uncomfortable way of driving. The 85 series tires have about 4" of space between the pavement and the rim, so that a serious bump can be absorbed without denting the rim. A 35 series tire is only about 1" to 1.5" off the pavement, and can have a blowout much easier if it hits a 12" diameter pot hole that is 2" deep. It might be severe enough to cause the rim to contact the pavement. Something that is not to uncommon around California.

Fred.

chrizg wrote:
I run my truck tires at max or close to max when towing (80psi). Was thinking about lowering them down when not towing. Anyone else do that ?

At max pressure my tires are rated for 3,415# each, I have about 5,100# on the axle when loaded. That means that at max good for 6,830# and only carrying 5,100 I run about 70 psi. When I drop the fiver I drop to about 55 psi, if you run max all the time your tier will go bald in the middle.

I just leave mine at max.