18" tire pressure

**zinkota** · 08-08-2008, 11:06 PM

What is the proper tire pressure for 18 inch tires? I have Goodyear 285/35/ZR18 tires on my 02 and don't really know what to inflate them to.

**tonyjnjz** · 08-08-2008, 11:11 PM

28 rear 32-35 front

**Speed Psychosis** · 08-09-2008, 03:15 AM

im pretty sure that should stay the same as stock. pressure isn't a volume.

**ldanny** · 08-09-2008, 10:39 AM

look on the tire itself it should tell u max pressure just subtract like 5psi from that

**Fearls1** · 08-09-2008, 06:22 PM

The less presure the better traction, however the more wear will occur. Your choice

**Eugenio_SS** · 08-09-2008, 11:33 PM

pressure should not change with wheel size.

**9T8W66** · 08-10-2008, 07:06 AM

Originally Posted by ldanny

look on the tire itself it should tell u max pressure just subtract like 5psi from that

The Max pressure is what is needed to properly seat the tire on the rim.

Like Eugenio said tire pressure shouldn't change with diferences of size.
Look inside on the drivers door sticker and it will give you proper inflation pressure for your car.
BTW I have 18's and mine are set 32 front 30 rear

**LS2Tuner** · 08-10-2008, 12:26 PM

28-32psi will be fine.

If you have any type of ball joint breaker pot holes like Chi Town area I would lean toward 28-30.

**zinkota** · 08-10-2008, 01:27 PM

Thanks for all the answers guys. Just curious, why a higher pressure on the front than the rear?

**LS2Tuner** · 08-10-2008, 01:54 PM

Originally Posted by zinkota

Thanks for all the answers guys. Just curious, why a higher pressure on the front than the rear?

Usually do to the point of trying to aid traction. I have Never ran my pressures that way back where your at do to the fact of crater sized pot holes. Thank God we don't have those issues out west here.