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GROB 109 MOGAS issue
Abstract: Probably the issue of going away from AVGAS has been debated before - and hence, I'm looking for a summary of that.
Subject: GROB 109 MOGAS issue
Probably the issue of going away from AVGAS has been debated before - and hence, I'm looking for a summary of that.
this means, that (at least in Germany) you'll need SUPER + fuel which comes without ethanol.
So the 10% alcohol addition should not really affect the G109B"
On top of that, a Service Bulletin 817-46 describes details in converting from AVGAS to MOGAS.
As I see it, 96+ octane "super" unleaded MOGAs is a safe solution - as long as alcohol is not added.
Any comments to that?
Subject: Re: GROB 109 MOGAS issue
I would not use any alcohol in an aircraft. The Grob manual says to avoid fuel additives. My chainsaw won't run with 10% ethanol.
Subject: Re: [G109_Pilots] Re: GROB 109 MOGAS issue
We have been using 93 octane super unleaded for the last three years in our 109B. We fly out of a small airport in Hawaii and really don't have much of a choice. When we first brought the plane to Hawaii, we did initially use AVGAS 100LL. We had more spark plug fowling with the avgas than with the 10% ethanol super unleaded. We did the same inquiry that you are doing now and we thought we would give it a try. If I could get mogas without ethanol, I would, but we cant get it in Hawaii without a lot of effort.
Looking at the fuel tubing in the fuselage I would not recommend the use of fuel with more than 1% alcohol. The tubes might be solved by the alcohol, resulting in clogges fuel lines or carburetors.
Just my thoughts ...