I think, overall, auto gas is probably the better choice or 80 if it is available. I run 80 whenever I can find it. However, if you have to run 100LL and want to eliminate the probability of valve sticking...add 4 ounces of Marvel Mystery Oil to each wing tank on a fill-up, plus a quart of it in the oil during the oil change. It does a great job of keeping that top end clean.
I probably won't switch to mogas until it becomes available at the FBO. Keith Bolte 5663F
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