Quote:
Originally Posted by jrb55gh
Does running large concentrations of ethanol in fuel cause the stock fuel pump hat to fail sooner?
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I currently have no reason to believe that the material is compromised by ethanol. I ran mine in nothing but E85 for over 3 years since last inspection and the OEM plastic showed no degradation of that type. It just had the "lean" going showing that it had deformed the same as any higher mileage ones I have seen.