I'm starting to do some testing with non-ethanol mogas in my O-360A1A and right now I have 100LL in one tank, mogas in the other. Heard a random snippet from someone that they'd suggest always landing and shutting down on 100LL as to have the carb sitting in 100LL instead of mogas due to seals deteriorating. Wanted to listen from the collective group if this is in fact a risk, or if any seals are at risk, if I just switched to 100% mogas in the future.
I have an MA-4-5 carburetor P/N 10-3878. It was rebuilt by an A&P in 2020 in case that can inform you of what vintage my seals are, although I don't have documentation on the exact seal kit used in the rebuild.
I have an MA-4-5 carburetor P/N 10-3878. It was rebuilt by an A&P in 2020 in case that can inform you of what vintage my seals are, although I don't have documentation on the exact seal kit used in the rebuild.