Whats Your Air Pressure?

[mysticz]

I always wondered what their daily driving average air pressure people ran on their rigs.

Mine, LT285/70R17 run 38psi all 4.

 

[Pierre T4R]

285-70R17 KO2's 10 ply model. I daily drive my truck and I set the pressure at 32 psi. I think tire pressure setting is a personal choice but interesting to see what people like. The equipment level on your truck will most likely affect your pressure setting.

 

[That_Titanium_4RNR]

Running my bald 285/70 Falken AT3Ws at 38 psi. They seem to wear the best this way for me. I also don't have any additional weight on the truck.

 

[hinmo24t]

255 75 17, LT but only 6ply, (33s) i run 39psi daily driving and go to 25psi when on the rocky/swampy trails out here in MA. added weight is sliders and tire carrier and tools

 

[UrbanRunner651]

34 on stock 265s per Toyota recommendation. upped to 38 in the winter. No significant extra weight.

 

[Inv4drZm]

30-32 psi on 35" mud terrains. Lots of extra weight.

 

[awhitney1]

35 PSI and run 35" by 13.50" tires on the highway and 25 psi on gravel/rocky roads.

 

[4runnin4mylife]

285/70/17 KO2's in C Load... 38 PSI all around... slight weight added up front

 

[Bumbo]

255/75/17 - C Load - Mud Terrains
32 PSI front
30 PSI rear

Off-Road
high teens to low 20's for general purpose driving
Mid teens for crawling

------------
265/70/16 - Michelin Road Tire
34 PSI cold

 

[2003-4x4runner]

255/75-17 Goodyear Duratrac's set at 40 psi.

 

[firebirdguy]

34 on stock 265s per Toyota recommendation. upped to 38 in the winter. No significant extra weight.

toyota says 32psi per my owners manual. not a big deal to run 2psi more though. curious why 38 in the winter, what does the extra psi do?

 

[having fun]

DD

Wieght of front ÷ 2, wieght of rear ÷2.

Tire of preferred, max wieght ÷ max psi = wieght per psi.

Front ÷ # to wieght per tire psi, do the math.
Rear. Ditto.


Off road.. Depending on the terrain. How low can you go, :biggrin2:

 

[Whoknows]

DD



Wieght of front ÷ 2, wieght of rear ÷2.



Tire of preferred, max wieght ÷ max psi = wieght per psi.



Front ÷ # to wieght per tire psi, do the math.

Rear. Ditto.





Off road.. Depending on the terrain. How low can you go, :biggrin2:

You know the weight of front vs rear of your 4runner? likely my ignorance for certain, but how?

 

[having fun]

Yep, with all the extras I've added, go to a CAT scale, weighs front and rear separatedly.

 

[UrbanRunner651]

curious why 38 in the winter, what does the extra psi do?

Yeah I think it is 32 my bad. I go by the tag on the driver door. Just preference. Increasing it accommodates the temp shift in the winter months since there isn't as much thermal expansion.

 

[firebirdguy]

Yeah I think it is 32 my bad. I go by the tag on the driver door. Just preference. Increasing it accommodates the temp shift in the winter months since there isn't as much thermal expansion.

yes psi gets lower with colder temps. but if you pump up to ~32 when its already cold, then you are closer to staying at correct psi, going to 38 when its cold is too high for me & means if/when it warms up any, the psi will be too high.

the average gain/loss is 1psi per 10 degrees. i adjust mine if the pressure sensor goes off coming up on winter, or just wait for it to drop from summer temps of ~80 to fall temps of ~50, then again closer to winter when its ~20-30 or lower.

 

[TheHennDoggg]

Terra Grapplers

265/70/17 Terra Grapplers
32 psi on road
12psi offroad, which is a little low but haven't lost the bead yet. Might bump it up farther next time