Yes, I know its been covered by others- yet there seems to be no definitive answer to the question: what are the recommended pressures? (Im asking for the USA, but Im sure others are curious also)
I have dunlap 8080s and the sidewall says max pressure is 51psi. The sticker on the drivers side of the door has icons that apply to the dunlap tires but then says max=44/48. The sticker then lists another set of numbers but these have French next to them for a description. It seems to me that these are for snow tires.
I checked the M5 manual and it states recommended pressures should be 35/38. I called my dealer and was told to use 32/39. I then called BMW USA and they said to use whatever the door sticker says. I decided to call the dealer one last time and they then said to use the 44/48 number.
I tried this and it seems too high to me. The car is a little too "bouncy". I decided to compromise between the manual and the door sticker and set the pressures to 40/43.5 psi.
Does anyone know what the actual recommended pressures are?
They said for every-day use and even at the track, they said that the higher pressures give the car a better feel and allow for better handling. I don't recall the specifics of exactly how and why. Those are the pressures that they had all the M5s there at Spartanburg. Also, this is just a little bit of a side-note, but I spoke to the instructors there, and they said that once the cars finish their stock set of tires (whether Michelins or Dunlops), they are all put on Michelin Pilot Sports.