Quote:
Originally Posted by 335XI///M
IMHO going over 30% would be pointless w/o a custom tune.
By the way mine just threw some fuel pump codes running about E27... I would not go over E30 w/o an LPFP upgrade... Although I know some on here are running like E40/E50 on the stock pumps... Myself I hate CEL's though
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Thanks, that's the input I was looking for. I really don't want to upgrade the pump so I will stick to E30 and pro tune. Knock on wood I've been driving most of the day with E30 pretty spirited no cel. I have to get some logs in so I can check the lpfp. I believe it's not supposed to drop below 50psi at any point.