Originally Posted by unic66
I'm in the San Fernando Valley,unfortunately!
Do you need to convert anything to run on alternative fuels on our cars?
Ideally, yes, but the N54 is highly capable to run up to 50% Ethanol. But you must have a proper tune. another poster on this forum, i believe it was on the COBB thread a few pages back. He has the flex sensor installed with proceed tune. which will automatically adjust the DME per the ethanol percentages. It was interesting that he was getting inconsistent ethanol mixture rates from the same pumps. That's why every fill up i do at least 1 log to check how my car is running.