M5 Expert (>4000)
Join Date: Jul 2006
Location: New York
Thanked 559 Times in 344 Posts
Shell Gas -- 10% Ethanol?
I don't disillusion myself about being anything but ignorant when it comes to types of gas and E85, but I was very surprised to see a sticker on the pump at Shell stating that the gas has 10% ethanol. I always thought U.S. gas was 5% ethanol and what we call E85 was 15% ethanol. It is my understanding that (i) E85 is corrosive and should only be used in vehicles with gas tanks specialy designed for it and (ii) that fuel economy with E85 is about 20% less than with standard gas.
Can anybody confirm that U.S. gas typically contains only 5% ethanol? Also, any idea whether the Shell 10% ethanol fuels can create corrosion issues with the tank on the M5 and/or reduce the already pitiful fuel "efficiency"?
Needless to say, I passed on Shell and have been filling up elsewhere for the time being.
2014 M5 Competition|Space Grey|Black Merino Full Leather|Anthracite Trim|Executive package|LED Lighting Package|Drivers's Assit Package|B&O Sound System|Bel STiR Plus 9500ci|IND Side Markers and Side Vents|Exhaustmeister|Pirelli Sottozero Serie II
Past Rides:'07 M5 Silver grey/Black(Nicely Modded)|'04 745Li Titanium Grey/Black|'01 740iL Titanim Silver/Black|'91 K1100RS|'88 K75S