Re: Autogas
My 912 has water cooled heads. My ford v6 was water cooled...including the heads. After 100 hrs the ford had damaging lead deposits in the exhaust chamber of the heads. I was using 100 LL. The machinist, an A&P, removed the deposits and suggested I use non-alcohol auto fuel since the water cooled heads did not reach temperatures high enough to purge the lead. Spark plugs gave a clear indication of the lead buildup. 300 hrs later plugs did not show lead. Cost is less than 100 LL or at least similar. Incidentally, it stores well also in my mower and pressure washer. But, on cross countries use of 100LL cannot be avoided. A 23 hr flight from AZ to FL did not seem to be a problem. My view of this question is to use auto fuel as much as possible at least in water cooled engines.
Reply With Quote
