Today's Message Index:
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1. 06:47 AM - Fuel - Mogas (Kelly McMullen)
2. 07:02 AM - Re: Fuel - Mogas (Rob Kermanj)
Message 1
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I believe nearly every parallel valve -540 engine was certified on 91/96
octane avgas. Of course, that fuel had mostly disappeared when I got my
license in 1974.
However, most engines in type certificated airframes with engines that were
certified on that fuel were capable of obtaining a 91 octane mogas STC,
excepting those where airframe issues precluded its use.
My question is whether any -10 users have contemplated use of mogas.
Yesterday I was at Bountiful Skypark in Salt Lake area, preparing for
takeoff when another -10 departed. It is one airport I am aware of that
offers 91 octane, ethanol free, mogas...partly to support their fleet of
Rotax powered LSA trainers. Rotax not only approves its use, but extends
oil change intervals to double what is prescribed when using 100LL. My
main concern is less any effect on the engine, and more whether mogas has
any impact on the Pro-Seal used in the tanks.
So, just looking for whether there is any experience out there. Obviously
not considering anything less than 91 octane and not anything with ethanol.
Kelly
Message 2
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| Subject: | Re: Fuel - Mogas |
Research Turbo Eddie on vansairforce blog. He has had thousands of
hours with togas. Perhaps 4000 hrs plus.
> On May 7, 2019, at 7:45 AM, Kelly McMullen <apilot2@gmail.com> wrote:
>
> I believe nearly every parallel valve -540 engine was certified on
91/96 octane avgas. Of course, that fuel had mostly disappeared when I
got my license in 1974.
> However, most engines in type certificated airframes with engines that
were certified on that fuel were capable of obtaining a 91 octane mogas
STC, excepting those where airframe issues precluded its use.
> My question is whether any -10 users have contemplated use of mogas.
Yesterday I was at Bountiful Skypark in Salt Lake area, preparing for
takeoff when another -10 departed. It is one airport I am aware of that
offers 91 octane, ethanol free, mogas...partly to support their fleet of
Rotax powered LSA trainers. Rotax not only approves its use, but extends
oil change intervals to double what is prescribed when using 100LL. My
main concern is less any effect on the engine, and more whether mogas
has any impact on the Pro-Seal used in the tanks.
> So, just looking for whether there is any experience out there.
Obviously not considering anything less than 91 octane and not anything
with ethanol.
> Kelly
>
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