mwalls54
Tex
I just put some 285/70/17 load D bfg all terrains on. i am trying to figure out what the best psi to run in them. I am getting ready to haul a 10k trailer from south texas to the DC area.
285/70/17 tire pressure
- Thread starter mwalls54
- Start date
DaveBen
SDD Senior Member
Run 65 psi in them all of the time. You will get better tire life and maybe a mpg, or so, better mileage.
Dave
Dave
mwalls54
Tex
thats about what i have in them now. Thanks dave
yeah, if you're going to haul something, max 'em.
if you're just driving around town, I learned a little trick years ago when I got in the tire business...
1. Set your tires at max sidewall pressure
2. Take a tire crayon strike three lines 120* apart across the entire face of the tread
3. Drive the truck a few hundred yards
4. Get out and look at the lines
repeat step 4 untill a new line is completely erased in one pass
There. you now have the optimum pressure for a flat footprint on the pavement.
if you're just driving around town, I learned a little trick years ago when I got in the tire business...
1. Set your tires at max sidewall pressure
2. Take a tire crayon strike three lines 120* apart across the entire face of the tread
3. Drive the truck a few hundred yards
4. Get out and look at the lines
A. If you can see the ends of the lines, decrease the pressure 5psi
1. Re-draw the lines
A. Drive a few hundred yards more, check the lines again
repeat step 4 untill a new line is completely erased in one pass
There. you now have the optimum pressure for a flat footprint on the pavement.
JRJ04
Senior Member
what about the psi in 285/75/R16s? ive been running 55 in the front and 60 in the back. they are bft at's as well
well, here's the deal... on a factory tire, we use the door post pressure...
when they've been upsized, plus-one'd, etc... we use the other method
I'm thinkin' you're gonna end up with a lot more in the front hoops...
when they've been upsized, plus-one'd, etc... we use the other method
I'm thinkin' you're gonna end up with a lot more in the front hoops...
JRJ04
Senior Member
so then is it safe to say 65 all the way around, assuming im unloaded?
DaveBen
SDD Senior Member
It is safe to run loaded or unloaded at 65 psi. I have 80,000 miles on this truck and the tires look great. Some wear all across the tread, but no weak areas or worn edges.
Dave
Dave
JRJ04
Senior Member
dave are you running 285's as well? ive got 65 all the way around in mine now and im just wondering if its too much?
JRJ04
Senior Member
well i looked at my tired today and noticed that the outside edges on the front 2 are wearing faster than the rest of the tire. could this be from having the pressure too low at 55?