Let's talk tire pressure. I have a 95 F150 4X4. The tires are LT235 75R15. The plate on the door says to run 41lbs pressure for full GVW. I run lower pressure for running empty, around 32lbs. Will this hurt the tires or cause handling problems. Thanks for any input. Dave

 

That should be fine. I run 35 psi in my 31x10.50x15 BFG all terrains. Never had a problem. I think most tire shops only inflate to 35 psi.

 

Thanks for the reply, I find 32lbs ride smoother, On the sidewall of the tires it says to inflate to 50psi for full GVW. Don't know if I would want to run then that hard though.;-)

 

i run 40-45 psi in all my tires regardless of size (on my trucks that is) @32psi you will want to keep an eye on them. remember the firestone fiasco. firstone claimed the failure was caused by improper inflation. just keep an eye on them i cant see what difference 35 compared to 32 would do for your ride but that is your preferance. drive safe.

 

The amount of pressure you run all depends on the tire, the load and your comfort.

I have an F250 yadda yadda that I use to tow an 8,000lb trailer. When I tow I have 60psi front, 90psi rear. Neither of these pressures exceed the rating of the tire, so it shows there can be quite a large range of pressure. The truck manual recommends a minimum of 50/50(I think or 60?) for no load driving and comfort on my truck. The 60/90 is recommended for towing.

On an F150 your tires will likely have a lower maximum. Never exceed the maximum for normal usage. There is also usually a minimum but it is usually not on the tire. Ask the tire dealer, or if they are factory stock, follow the manual or door post sticker for minimums. I usually run down near the minimum for no load comfort. At 90 psi the truck rides like a rock.

Too low pressure can cause a tire to pop off the rim, over heat, blow out, wear on the edges and handle kind of wobbly etc. Too high can also cause it to pop off the rim but differently, or cause the cords to fail or cause wear in the center.

Good Luck,

Jim henderson