Thread: Using E10 Ethanol Unleaded in my P38

P38 handbook specifically warns against using Ethanol blends. Ethanol causes deterioration of the fuel gauge sender such that the gauge reads only half full (if at all) even on a full tank... may mean dropping tank and replacement of fuel sender. Got a couple of dodgy refills on a trip...fuel gauge reading all over the place but generally stopped at halfway mark. Once I'd cottoned on to the issue, it took several tanks of PULP and EFI cleaner to clean the crappe off the sender...I was lucky, others not so...

The same issue applied to the RRC. In fact, I have a fax I received from LR UK telling me just that.