Richard and Ken,
I may be wrong, but is it possible Ken is confusing octane ratings. 87
octane at the pumps in the US is 87 Octane MON (Mean Octane Number?),
whereas the 95 octane stuff we're told to use in Europa is 95 Octane RON
(Research Octane Number).
The two are not the same measure, and MON gives a lower number than RON.
87MON is not far from 95RON, but my recommendation would be to do an MSN
Search for these terms and come to an educated understanding of which auto
gas you can use in the US.
Either that, or ask a few folks flying Rotaxes what they use! :-)
Cheers,
Jeremy
Jeremy Davey
Europa Monowheel 537M G-EZZA
Europa Club Vice-Chairman, Webmaster, PFA NC Representative
PFA EC Member
If you can keep your head when all about you are losing theirs, then it is
possible you haven't grasped the severity of the situation.
Tail done
Standard XS wings with mods underway
CM installed in fuse (with airbrakes fittings)
1380 build hours to date
Intended fit:
Rotax 914 turbo, Airmaster CS fully-feathering prop
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-----Original Message-----
From: owner-europa-list-server@matronics.com
[mailto:owner-europa-list-server@matronics.com] On Behalf Of R Holder
Subject: Re: Europa-List: gas mixing
kenneth b. carpenter wrote:
> carpenter" <kbcarpenter@comcast.net>
>
> Has anyone explored the issue of mixing 50/50 87
> octane auto gas with 100 LL to get 93 octane gas for
> 914T engines? I think 912S engines also need 93 octane
> gas. Sounds like it would be better for the engine
> than 100LL alone. Ken Carpenter N 9XS 914T
Why not just use 91 or 93 octane Auto gas !
If you are carting auto gas into your hanger to mix it
with Avgas, why not just use auto gas ?
912 912S and 914 all run on Mogas (auto gas) and the oil
needs to be changed every 25 hours if more than 30% Avgas
is used. The oil changes are at 50 hour intervals if you
use Mogas.
Mogas is also cheaper ($5 a US gal here in England)
compared with over $7 a US gal for AVGAS.
Richard Holder
Europa TriGear G-OWWW High Cross
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