help with pressure m3

[hellerwest]

hi,

can anyone tell me what's the best psi for my m3 tyres. Its an 02 m3 and i've got 255/40/18's ob the back and 225/45/18's on the front. They are all Michelin Pilot Sport.

I am nearly always driving alone and wondered if this would make a difference to the pressure i should put in the tyres?

thanks for any help...