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      11-12-2012, 06:34 PM   #6503
Carl Morris

Drives: 2008 335xi 6MT
Join Date: Feb 2012
Location: San Jose, CA

iTrader: (0)

Originally Posted by MikeS300 View Post
What's been your experience with gas mileage (not that this is the primary concern of performance tuners) after disabling spool mode? When it's warm outside I'm getting around 21 to 22 mpg with maybe 75% highway and 25% city driving in a week. I'm just curious how bad the gas mileage tanks with richening up the fuel mixture.
I have such huge variations in gas mileage due to ethanol percentage that I don't notice changes due to spool mode. In my normal driving routine I only get about 230 miles from a tank of straight E85, where I get close to 350 from a tank of gasoline. I may drive harder on the E85 :-).