I haven't run anything but regular CA car gas in 81 JM (HAPI engine, POSA carb)for thirty years. It rotted out my fiberglass fuel tank a decade ago. No problem since I replaced it with aluminum.
On Mon, Dec 8, 2025, 4:13 PM Larry Flesner via KRnet <[email protected]> wrote: > > On 12/8/2025 2:50 PM, Steve Loebs via KRnet wrote: > > There are a lot of ULPower EAB planes out there: RVs, Zeniths, etc. They > must have made the right decisions so they can use the cheap ("bad") auto > fuel. Are they all playing Russian roulette with their lives when they fly? > Also, none of my cars have ever had a problem with E10-87 since they > outlawed MTBE and went with ethanol as the octane booster. (I don't buy > E10-91 since my cars' engines were designed for regular unleaded with > ethanol.) > > > ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ > > Don't take all the posts that identify possible problems with "auto" fuel > to mean you should *never *consider using it. Rather take them as a > heads up on possible issues and make sure you have accounted for all the > possible problems of it's use given the aircraft you intend to use it in. > Consider handling, storage, comparability with entire fuel system from > tanks, fuel lines, fuel system components, different sources with different > additives, the engine you're using, etc., etc.,. > > If you can comfortably cover all the issues, the savings could be > substantial. With a well designed system, the ongoing quality and > consistency of the fuel would be the major concern. > > Good luck and happy (cheap) flying............ > > Larry Flesner > > > -- > KRnet mailing list > [email protected] > https://list.krnet.org/mailman/listinfo/krnet >
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