So I'm buying av gas in 5 gallon cans for my 0540 lycoming on my airboat....

We put an additive in ours, startron comes to mind, in a blue bottle.

Seafoam has not provided enough protection. Nor has stabil, but maybe marine stabil might... have not tried it enough to know.

When I need something without ethanol in it for sure, I go get AV gas and the higher octane is a plus too.

We can keep Larry Root and all his idiotic blabber and user names on here, but we can't get Ralph back..... Whiskey Tango Foxtrot, over....