Old gas

Tony S. · Mar 21, 2019

Last summer I cleaned a ton of gunk out of the fuel line on my F-12. Couldn't believe how bad it was. Today I started 2 Harbour Freight engines that have been sitting almost 3 years with gas in the tanks. (carbs drained). 2 pulls and 4 pulls.

Janicholson · Mar 21, 2019

Leaded gasoline has a bad habit of leaving a varnish like coating on fuel systems that ethanol loves to turn to gum. The HF engines probably never have seen leaded gasoline. Jim

Russ from MN · Mar 21, 2019

That's the theory that I believe, the non-ethanol gas leaves the deposits and the ethanol cleans it out, and everyone blames the ethanol! We use e-10 in all 4-stroke engines and have no problems.

Tony S. · Mar 22, 2019

Guess you could be right. That tractor sat for a lot of years before I fixed it up, but the lead would still be in the tank, I suppose.

Old gas

Tony S.

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Janicholson

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Russ from MN

Well-known Member

Tony S.

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