I have been running 90 octane ethanol free in the lawnmowers and boats. For the chain saws and weed eaters I buy the 95 octane 1 gallon cans. I have been doing it like this for about 5 years now and haven’t had to tear into any carburetors or replace any fuel lines yet.
I sure don’t miss rebuilding them little carburetors and changing the lines. Especially the one that fights you going through the tank of the saw or wead eater and then the struggles of adding the filter to it.