Guys,

I have a G6ET with the factory 19' wheels and rubber.

Does anyone no what the recommended tire pressure is for these,

We generally run 40-42psi in 19" tyres, this gives a bit of protection for the wheels, and also makes the most of a good wheel alignment by reducing sidewall flex.

Down side is the ride is a little firmer, but nothing extreme

I think in the book it's 38

I think that you will find the majority of us run around 40psi cold. If you use what the owner's manual recommends (lower pressure), you will get a softer ride. However, you will be purchasing new tyres more frequently due to increased wear.

After my kids had completed the AAMI skilled drivers course they were all told to run their tyres at the full load pressure indicted on the tyre placard. Iv'e done this with all my cars over the years and find it makes the tyres wear even too.

That is exactly what I have done with my 19". I also found they initially were at 37 when I got to the servo and I raised them all to 42 as on the placard. Doesn't seem to ride any harder.

After that I then found my economy improved by 0.8 lt/100klm on a trip.

Edited 31/03/11 02:27 AM31/03/11 02:27 AM by ColinT

There are many differing opinions on correct tyre pressures and it really comes down to how you drive, what power you are making and what your preference is. Personally I use to run 42 front and 38 rear (cold) and found that under full temp they were increasing by approx 5psi each. This was making the car rough over the road surface and it seemed to have less grip. I now run 40 front and 36 rear (cold) to allow some increase with temp and this has improved grip I believe. I run lower temps in the rear to try to improve traction.

I think each person should try varying pressures as see what suits their driving and car.

Benny