Gary,
 Where in California are you if you're ok sharing... I'm near Watsonville,
CA with 1984 KR2 w/GAPI 2180 (Great planes conversion of HAPI) garaged in
San Jose, that hasn't flown since 2008.

Steven W Plyler
Plyler Construction and Design
(408) 390-5971
Email: [email protected]

On Mon, Dec 8, 2025, 6:07 PM Gary Sack via KRnet <[email protected]>
wrote:

> 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
>>
>>
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