SL/R231: Tire Pressures




The sticker on the driver side door says 36 F and 42 R.
I don't know what the top weighs but I'm guessing the increased recommended pressure in the rear tires is to account for top down driving and/or luggage.
I have new OEM spec Continental runflats on my car.
What are others running in their tires and do you increase pressures for sustained driving at maximum allowed speeds?











