Don't expect an increase in fuel consumption.... it won't happen.
Hey - you are in the US, why are you bothered about fuel ?
Gas over there is dirt cheap!!!
In the UK - We are paying 88p a litre!! (1.67 dollars approx per litre)
so think yourself lucky...!
If i lived in the US, i would be buying the 4.2 V8 S4.......

)
:grin: