Correct tyre pressure

[cmyvtss]

Hi,

I have just purchased tyres for my ss they are the Goodyear F1 235/45/R17 when i purchased the tyres they advised me to run the tyres at 38-40psi is this correct .My mate bought the same tyres(from a different dealer) only in the 18 inch and he was told to run them at 34psi. Any advise would be appreciated.Cheers

[stirlr01]

I was under the impression regular city driving should you should use 32-34psi, and for prolonged high speed driving such as country runs 38-40psi.

I personally run about 36psi in mine, as I have a highway run to work then city driving the rest of the time.

Ryan

[-HSV-]

iv got 235/45/r17's and run them at 32psi. anymore and my car would rattle apart! very firm suspension set up i have and iv found that 32psi is a good pressure. keeps the tyres grippy on the road and it doesnt seem to affect it at all at high speeds.

[GTS215]

Hi,

I have just purchased tyres for my ss they are the Goodyear F1 235/45/R17 when i purchased the tyres they advised me to run the tyres at 38-40psi is this correct .My mate bought the same tyres(from a different dealer) only in the 18 inch and he was told to run them at 34psi. Any advise would be appreciated.Cheers

I had a set of Goodyear F1 they were a fantastic tyre, i run mine on 38-40PSI, the ride maybe a little bit harder but you get more wear out of them.

[cmyvtss]

Thanks guys, i revisited my tyre centre and asked a few more questions,they advised me that with the low profile tyres there is roughly 5mm differnce in height from the middle of the tyre to the outside of the tyre the higher the psi the more wear you will use from the middle of the tyre not the outside of it which will generally happen when you run them at 34-36psi.They did say that this is there opinion of the tyres they have sold, but each to there own.Only time will tell i guess,thankyou again for the responses.

cmyvtss

[GTS215]

Thanks guys, i revisited my tyre centre and asked a few more questions,they advised me that with the low profile tyres there is roughly 5mm differnce in height from the middle of the tyre to the outside of the tyre the higher the psi the more wear you will use from the middle of the tyre not the outside of it which will generally happen when you run them at 34-36psi.They did say that this is there opinion of the tyres they have sold, but each to there own.Only time will tell i guess,thankyou again for the responses.

cmyvtss

What you will also find is that cars running IRS will wear down the inner side before the middle, Ive found that its always my inner side which wears out. Ive found running higher PSI as they suggested to you will add more wear to the middle which for my setup will slightly even up the wear. Correct tyre rotation always helps the life span on tyres too.

[HSV_Punk]

I run mine at 36psi as I was advised when I did a driving course. My dad runs his the same and we got 90,000 out of each of the last two sets of tyres doing this.

[stirlr01]

90,000km?
You clearly don't hold the same contempt as I for my rear tyres
:)

[-HSV-]

90,000km?
You clearly don't hold the same contempt as I for my rear tyres
:)lol, the last set of rears on my VT lasted 13,000kms!

...the new ones should last longer though, the roads have been wet :p

[HSV_Punk]

That was the tyres on my mums car(VS Caprice). Ie driven slowly.

I highly doubt I will even get half that.

[wagnman]

lol! 900000 km on a set of tyres? Grand Dad! Your Holden dealer must love you and they better look after you if you need anything fixing!

[brentons_house]

as I've just got my car I'm new to experimenting with tire pressure but I think I will go 38-40psi, it has still suspension so if it's to rough I think I will take it down to 34-36.