Hi,

i just bought a 1990 Hilux 4x4 Dual Cab Diesel 2.7 with Savero tires 31x10.5 R15 LT 109 R. ANd I dont know howmuch pressure I should give them loaded and unloaded. The manual says "as conventional tire". But they have all different pressures. The mechanic says 30/35. So I am a bit confused.
Sorry for my bad english..
Thanx, Stefan

 

I run all my stuff at 35 PSI, and have had the best wear with this pressure than any other pressure.

 

Thanks for answering. So, no matter if loaded or unloaded, back or front you run it with 35? With all kinds of tyres?

 

It should say ON THE TIRE what pressure to run them at... probably 35 psi..

 

make sure thats 35psi hot

 

Do not go by the pressure as rated on the sidewall of the tire. That is usually their maximum recommended pressure. On the driver's side, usually the front door, but sometimes the back, there should be a decal with all the information on it. This sticker will have the factory recommended tire inflation. If I were to guess, I'd say it's probably 26 psi front and 32 psi rear, but that is only a guess.

The chassis is designed and set up for a certain tire pressure. I usually run with what the engineers who designed it, recommend for it.

BTW, tire pressures as indicated on the decal or in the owner's manual are for COLD inflation (ie. not warmed due to driving).

 

i also run 35 on all tires.

 

Elton, I've never heard of measuring air pressure when the tires are hot. I've always heard to measure them cold. Even if you put the tires maximum (listed on sidewall) when the tires are cold, you are fine when they get hot as the manufacturers take this into account when listing max pressure.

I run about 35 psi on my street vehicles too. Much less in the 4runner as it's about 99.9% offroad.

 

hmm i always put around 32-33psi cold soo i should put 35psi instead ?

 

That's what I run (35-36psi) in my wife's Tahoe and about 34-35psi in my Tacoma.

 

i put 30psi all around, if i dont, the tires wear in the center

 

On my 1989 pickup with BFGoodrich 31X10.50 15 (Mud-terrains and All-terrains) I run 38psi. They are wearing even, Yes it's a bit of a hard ride, but it's a truck.

 

My 92 Toyota pu has a recommended 26 front and 29 rear with stock 225/75r15 tires. I run 31x10.5r15 and never carry much in the bed the 29 is with load in bed. if you run empty 26 front and 24 rear works much better better footprint and better wear.

 

For what its worth, I always try to stay at 35psi unless I'm off road. I've never had any unusual wear in the center of the tread (from over-inflation) or anything like that...

*I'm running 31x10.50 BFG Long Trails

 

old post but no info on it so...
1991 toyota 4runner manual says 26 psi front 29 rear,
for driving over 75 mph were prohibited 29 psi front 32 psi rear.
psi is for both tire sizes 275/15 and 31x10.5
the bridgestone duller 695 tires have a nice soft ride and were cheap.
465.00 for 4 out the door.
tire shop filled them to 35 psi all 4?