I got new S4's to Discount Tire recently and a 4 Wheel alignment at the Dealership. I love these tires!
The dealership swapped the atmosphere in my tires with
N and put about 40 PSI. The drivers door said 35PSI so I dropped mine to about 36.5 lbs
Cold.
What is the best PSI for daily driving and moderate concerning
driving slower?
I take harder corners 85+ MPH. In Texas on the toll (Redneck Autobahn
) the speed limit is up to 85 MPH. I typically exceed that +15 MPH. The Summers temperatures typically are range from 80º-105ºF so there is no reason to put too much
N in the tires.