Using 100LL, the whole violation of federal law thing aside, is too expensive. By the way, it's not tested the same way as auto gas, (the r+m/2 method), so it's not really 100 octane either, at $6 a gallon. Which as stated, doesn't increase performance in lower compression engines anyway.
Ideally, you find boat gas, (which is ethanol free). And half the cost.
Though I never did it, I do know several people who use auto gas in their airplanes, and they all have for many hours, over a very long time. None of them have ever had any issues.
They also don't ever have lead fouled spark plugs.
Ideally, you find boat gas, (which is ethanol free). And half the cost.
Though I never did it, I do know several people who use auto gas in their airplanes, and they all have for many hours, over a very long time. None of them have ever had any issues.
They also don't ever have lead fouled spark plugs.