Sunoco 94 octane has betrayed me...

[y5choi]

Originally Posted by StanF18

Correct. Here in NJ it's 10% ethanol in almost every station, including Shell. Some stations post it on a sticker, and some don't. In any event, I think it is very unlikely that y5choi's problem was caused by the 10% ethanol since all current engines are designed to handle it just fine, including BMW. Perhaps there was another problem with the Sunoco gas he got, but it was not the ethanol itself. Maybe there was some other crap in it, like water. Who knows....

I mean if I have to drive out to the middle of nowhere and the only gas i can get is the 87 unleaded with 10% ethanol, i should be able to pump that in and make it out, right?

In fact, the manual says 87 is the minimum that can run on without problem- but the gas cap says minimum 91 octane recommended and also I hear people have the check engine light come on when they consistently use 87 octane fuel.