On Fri, Jan 04, 2002 at 08:59:47AM +1030, Simon Hackett wrote:
> In the last few months I've been running it on 'Super Equivalent'
> (since that's what started coming out of the petrol bowsers quite a
> while back...). It seems ok on it, but I'm not aware of any clear
> statements on whether this is formally 'kosher' with aviation engines
> that list 'leaded petrol' as an ok fuel, or not.
The main difference between AVGAS and Super (apart from filtration and
quality control) is that AVGAS has about three times as much lead in
it.
The additional lead increases the octane rating and also makes the
fuel "slipperier", giving it a subtle lubricating effect.
You can run automotive engines on AVGAS, but the lubricative properties
of AVGAS partly explain why you can't necessarily run aircraft engines
on Super. If the engine in your Motorfalke is a converted automotive
engine you probably won't have trouble with it, but some well-placed
phone calls to Scheibe might be the best way to find out for sure.
- mark
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