Quote:
Originally Posted by Bcone1381
Mike Busch's webinar is worth watching. You ought to watch it just to become familiar with who he is. A synopsis of recommendations from him backed up with truth and logic is based upon the fact that we rust out engines rather than wear out engines. 1) Use NO Synthetic oil. Revisit this when lead is removed form fuel. 2) Use Single Grade AD oil (50wt) 3) Use Phillips XC when sub freezing engine starts are expected. 4) Use ASL Cam Guard, but no other additives.
Lastly, Mike Busch's C-310 has run his two engines over 200% past TBO. 8 of 12 cylinders are original.
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We know lead and synthetic do not make a good match for long drain intervals. My email to Mobil engineers said as much but that's not really the question here since the OP was discussing unleaded Mogas use.
I respect Mike Busch very much but I'm guessing he has little experience with synthetic oils as far as long term sitting corrosion goes. I've used the stuff for something like 33 years, never seen corrosion anywhere inside an engine, even some which were stored for 4 years and a number of these were run on 100LL.
Camshafts and lifters on most engines are are made from very similar material no matter what their mission is. This suggests that the additive package in Mobil 1 might be better than aero oils with regards to corrosion protection. I haven't had a cam go bad since 1983 (not using Mobil 1 in that engine).
The fellow who contacted me many years ago didn't believe all the opinions he read about the matter so decided to just try it himself. He was well aware it could be an expensive lesson so he asked me not to use his name or talk about it back then in case the experiment failed. He didn't want to face the flaming he'd receive.
Like so many things in Experimental aviation, we have many who rarely step outside the tried and true boundaries and issue dire warnings based on little or no fact or experience. This often limits our growth of knowledge and keeps aviation engines way behind other markets.
It's prudent to listen for sure but nothing beats actually doing something to prove it true or false.
"The world is changed by your example, not by your opinion" Paul Coelho
Chinese Proverb: "Those who say it cannot be done should not interrupt the people who are doing it."
The only test case I know of shows it worked fine for at least 800 hours. Just one sample to be sure but it's a start at least.
Oil
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