Tire pressure - BMW Forum

FNinjaP90 · 12-13-2003, 02:24 AM

Hello, I have a 1995 750iL with Pirelli Pzero 255/35/20 front and 285/35/20 rear. When I bought them from the original owner, he said to inflate all four tires to 40psi. I'm thinking that the rears should have a higher psi than the fronts? What do you guys think? I also have a sound system that adds about 80lbs to the car. The wheels are Hartage 14-spoke. Thanks.

lwebb12 · 12-13-2003, 08:07 AM

what does the tire state the pressure to be?

FNinjaP90 · 12-13-2003, 10:23 AM

The tires state a max PSI of 50...that's a bit high. It varies from car to car. The PSI I would need in my tires would be a lot higher in a 4600lb BMW than a 3600lb Murcielago (which also has these tires). The rear should also be higher than the fronts. So what do you guys think they should be?

lwebb12 · 12-13-2003, 11:05 AM

i would say between 40-44 psi.