[stevozook]

I have only had my 2000 grand vitara for a couple of months. Just put a set of geolander tyres 235/60r/16 on and the tyre fitter said run at 39psi I think this is a bit high The manual says 26psi but that is a big difference to 39psi, any one have any thoughts about this? also what pressure do you run in sand and for off road rocky terrain?

[ajsr]

who do you think knows more? the retard tyre fitter or suzuki?
I'd try what the manual says and go from there.

[Rusho]

Definately 26psi. Tyre fitters are...well tyre fitters In my sierra I run 20psi on road 8psi offroad and about 10 for sand. I have 30 inch muddies. Hope that gives you some idea. Welcome to AZ also

[BlueSuzy]

Tyre fitters are good for fitting tyres. Not airing them up.

[stevozook]

Thanks guys for the info. I will be lowering my tyre pressure tomorrow to what Suzuki say.

[eldo]

you should always use the guide that the vehicle manufacturer uses to set your tyre pressures, even when i was with michelin we only ever recomended the oem specs, fuck some fitters are fuck heads

[ZookZilla96]

hahah 39psi is plenty high. ive been tyre fitting for 6 years. everything from push bikes to earthmoving mine dump trucks. but in saying that every seanario is different.. ive got a seirra with 31" M/T Claws and i run 36psi simply because if i run any lower my fuel economy goes down 50km's (only get 200kms to a tank as it is) and the car weighs nothing so it doesnt effect tyre wear. you will find if you run 26psi around town it will wear the inside and outside egdes of the tyre alot quicker than the centre reducing the tyre life. also im assuming they are the yokohama geolander A/T's? if so they are a softer tyre and lower pressure will wear the egdes even more. i would run say 34psi around town, and check pressures once every 2 months. as for the sand, i dont drop mine at all, but would be best to drop down to 20-15psi. not all tyre fitters are stupid guys.

[SuziBlu]

I run M/T baja claws, 31s on 8" rims, seems to me that the best wear rates I can get is around 18 rears and 20 fronts, more pressure means more/better fuel milage, but im not concerned about that, whatever wears the tyres best imo must be the go.

I did go to 28 fronts, an it was scary bouncy, mind, my roads are not tarmac, rather mostly pot holed dirt.

OME comfort 2" lift.

[shep]

ZookZilla96 wrote:

hahah 39psi is plenty high. ive been tyre fitting for 6 years. everything from push bikes to earthmoving mine dump trucks. but in saying that every seanario is different.. ive got a seirra with 31" M/T Claws and i run 36psi simply because if i run any lower my fuel economy goes down 50km's (only get 200kms to a tank as it is) and the car weighs nothing so it doesnt effect tyre wear. you will find if you run 26psi around town it will wear the inside and outside egdes of the tyre alot quicker than the centre reducing the tyre life. also im assuming they are the yokohama geolander A/T's? if so they are a softer tyre and lower pressure will wear the egdes even more. i would run say 34psi around town, and check pressures once every 2 months. as for the sand, i dont drop mine at all, but would be best to drop down to 20-15psi. not all tyre fitters are stupid guys.

fucken hell way to prove people wrong
i got 80000km out of a set of goodyear mtr's at 26psi. which
was the factory recommendation for the 1800kg car they were fitted to. having said that, tyre wear is not the main reason for running the right(read factory) pressures, things
like stopping distance and semi important things like that

[DMAC]

Always liked Zukenutters method about 5 posts down.

http://auszookers.com/index.php?name=Fo ... ight=chalk

That is all.

[MacDaddy]

stevozook wrote:

I have only had my 2000 grand vitara for a couple of months. Just put a set of geolander tyres 235/60r/16 on and the tyre fitter said run at 39psi I think this is a bit high The manual says 26psi but that is a big difference to 39psi, any one have any thoughts about this? also what pressure do you run in sand and for off road rocky terrain?

Woo Hoo, go the GV's !

Always use Suzuki tyre pressure recommendations... 39psi is way to high, and will give you hard/harsh ride...

[shakes]

where's grimbo when you need him? is this the third pressure question in as many days??

this is another thread that has some good info...

http://auszookers.com/index.php?name=Fo ... e+pressure

[SuziBlu]

No grimbo-in allowed.

We see on these threads, some who say they are tyre fitters an run high pressures, an some who are just odrdinary blokes running lesser pressures.

Me, I would try a drive, same road, same day, different pressures and see what is nicest, not fuel wise, but stopping and cornering.

Always high pressure will give better power/response, but, far lessened stopping and cornering.