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Non-ethanol gas
So I think you all know that ethanol-free gas is better for your engine and provides about 10% better gas mileage. Without getting into a debate about the economic and environmental stupidity of adding ethanol to gasoline (don't get me started), I'd like to share my recent experience.
A nearby, no-name station started selling ethanol-free gas for $4.55 (I usually pay $4.25). For me to break even, I needed to get 23 mpg combined city/hiway (I usually get 21.5). 21.5 : 425 = X : 455...solve for X! I just finished the tank and got 24 mpg (9% increase). I'm sold on this. I'll just throw a bottle of Techron in there every 5K miles to keep things clean.
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2016 340i XDrive, EBII/black, 6 MT, M Sport, Track Handling, Cold Weather, Tech, Lighting, Driver Assistance Plus.
2012 Z4 35i, ED 2/24/2012, Melbourne Red Metallic, Black Leather, Carbon Trim, 6MT, M Sport, CW, PP, PS, NAV, CA.
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