Quote:
Originally Posted by turkish335
I stay away from sunoco and ultra 94. It has 10% ethonol, which is rumored to damage the fuel pump and results in lower gas milage (on my 335 at least). I stick to shell vpower (91 and no ethonol).
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Most gas companies in North America put some degree of ethanol into there gas and don't tell you. In fact some provinces/states mandate a little in the gas for enviromental reasons. I was concerned about putting Sunnoco 94 in my car since it can contain up to 10% ethanol. However, they are considered a top tier gas company and even their web site states their gas exceeds some (can't remember) BMW spec for gas. I think it's sulfur content. So I use Sunnoco 94 since I think it's the best in the Toronto area.
Ethanol over 10% like the gas in the US that is 85% Ethanol will fry your motor. The BMW manual says the engine is OK to use up to 10% ethanol anyways.