[stubernx98]

Lead? What for. Current aircraft engines do not require lead other than as inhibitor. It is an OWT that it helps cool or lube the exhaust valves. Ran my Bonanza on auto fuel for 5 years and the only difference, was that my plugs weren't fouled with lead deposits.

[bill1952]

>Lead? What for.

Do you always answer your own questions and then act as if you just didn’t?

>It is an OWT that it helps cool or lube the exhaust valves

The auto industry had this problem back in the 70s when it had to re engineer those same valves and seats.
Still does.

Some aircraft engines are allowed the FAA approved Mogas conversion with the proper STC.
Almost all of them are not so allowed.
What will we do with them?

[Dead Dog]

My father runs nothing but autogas in his ‘54 Bonanza. The E225 seems to like it. Our old C-65 powerd T-crate simply ran like crap on 100LL

[Poundstone]

What model Bonanza do you have that you could run on mogas?

All Bonanzas since the S35 in 1964 have had at least the Continental IO-520 engine, which, being a high-compression engine, requires 100LL. My 1980 F33A definitely requires 100LL and simply could not operate on mogas.

If Swiftfuel meets the octane requirement for high-compression engines, then this could be an exciting development.