Tyre Pressures For 18" Sport Wheels

[Matthew_McNally]

What are the correct tyre pressures for the standard Lexus 18" / 18 spoke sports wheels?

Have them set at 33psi at the moment, but the handling feels a touch heavy, so was wondering if I had them too low

[necromax]

I found when I changed the wheels on my Impreza from 16 to 17 I had to put quite a bit more in than before. Subaru said 28/32 .. I ran 30/33 when it had 16s, reduced understeer having extra pressure in rear. When I put the 17s on, I found the shoulders were wearing too quickly on the front, and like u have found, it was a little heavy, so I upped the rear to 32 and the front to 35.. made a massive difference! I would try adding 2psi in each, take it for a drive down a road you know ;) If it feels too hard, try dropping a pound out... trial and error really, as its down to the individual as to how the car feels.

Hope this helps..

[SteveAudioX]

I have mine all on 32... Feels O.K

[ColinBarber]

Could always look in the Knowledgebase

http://www.lexusownersclub.co.uk/knowledge...ex_v2&id=44&c=3

GS300 and GS430 has the same pressures as their weights are about the same.

[MAC_600]

I run 35 psi at the front and 36 psi at the rear, as per the guide on the drivers door frame

[Matthew_McNally]

cool

gonna bump the front two up a bit then :B

[MAC_600]

I just had the rears replaced and they had worn evenly so I guess the PSI figure must be right.

I managed to get 13,000 miles out of them too, though they were right down to the wear bars :)

[Keith Bowler]

Hmm...I am running mine at 32psi and the ride is rock hard, although I have just changed tyres to Dunlop SP1's.

Would the ride be even harder if I up pressures to 35/36?

[MAC_600]

Hmm...I am running mine at 32psi and the ride is rock hard, although I have just changed tyres to Dunlop SP1's.

Would the ride be even harder if I up pressures to 35/36?

←

Have run with the tyre pressure low [must remeber to check it more often] and noticed no difference in the hard ride, it was just that the tyres felt like they were squirming.

I'd imagine that with them being suck low profiles, the side walls are so stiff anyway that the difference between 32 and 35/36 is so small, that you won't feel it in the ride hardness