Not sure about the ethanol, but been a believer for 15 + years. i keep about 20 / 25 gallons of gas at the house for mowers, pressure washer, edger, etc. & i always add it to every can. my dad owned a small engine shop for 20 years and bad gas was biggest contributor to engine starting issues(after they came out with solid state ign.) like shawsee, I'm a fan of sea foam for anything 2 stroke. i also use it for 4 stroke, but i don't see the results as well. we've only had E-10 here for about 3 months, so not sure what to do about that..
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