2003 4.6iS mpg. 94 oct Ron+Mon/2 Canadian Chevron no ethanol.

Hand calced, 346 kms...212miles.

13.5 mpg US Gallon. I was probably into it more than normal.

I'll get a gps reading for speed to confirm the accurate mileage.

My only complaints...the transmission shifting. Too soft. Also lags too much between gears sometimes.

The resonance is a little much for me. I prefer a deeper exhaust note. Yet a more refined depth...as it is a BMW.

I'll have to source a good microphone,and take some samples.