Hello All,

I have an 06 Mark LT with factory 20's running 275-55-20 Nitto TG.
I have noticed that I am wearing more on the outside of the tires (all 4)
I know that this caused by under inflation. My OEM POS Scorpions did
the same. I know that Ford states to keep the tires at 35 PSI, but the
Nitto's have a Max pressure rating of 50 PSI.

What are you running your tires at. I am willing to give up some comfort for
more tire longevity.

Thanks,

MC

 

I run 40 PSI front and back. Much more than that and the ride starts to get rough.

 

I run 38 psi. But if you don't stay on top of it, they all lose air gradually.

 

You should not be running the 35 since the OE tires and the Nittos are different load ranges. That size is an extra load P series. 40 would definitely be a better pressure.

 

40-42psi, but i have LT tires that have a max of 60psi

 

I will kick it up.

Thanks everyone!

 

I run 40psi as well. Added1 mpg for me.

 

x2 on Stock FX4 18s with the 3.73 gears.

 

45 psi right now. might drop back to 42 soon.

 

my BFG AT's are rated at 80 lbs, and I'm running 60 psi in them. Ride is great. Granted, I'm also running Bilstein 5100 shocks, so I know that helps too.

The way I see it, 60 lbs probably helps to give me a touch better mileage, and is less mushy in the turns. And this is still well below the max pressure of my tires.

Peace,
Fish

 

Best way to check for proper inflation is to run a line of chalk across the tire treads. Move your truck forward/backwards a few tire revolutions and see if the chalk has worn off evenly. Do this on flat level ground. Worn off in the middle is over inflated and worn off on the sides only is under inflated. Hope this helps.

Kev