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I have a 5 gallon can of gas from 8 months ago. I did far less yard work than I intended. I have fuel additives I could use. Joogle says 3-6 months, but I am looking for "real world" answers.

Please only answer if you know what you are talking about, and remember, I already used the internet to try to find my own answers.

Edited: Fuel is 89 Octane with UP TO 10% ethanol added.

I have a 5 gallon can of gas from 8 months ago. I did far less yard work than I intended. I have fuel additives I could use. Joogle says 3-6 months, but I am looking for "real world" answers. Please only answer if you know what you are talking about, and remember, I already used the internet to try to find my own answers. Edited: Fuel is 89 Octane with UP TO 10% ethanol added.

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[–] • 0 pt (edited )

Probably 10+ years. I had a car sitting in my garage since 2015 because I sold it and the transaction never was finalized until 3 months ago. I jump started it and it drove perfectly with the old gas no noticeable loss of performance. The tires have flat spots, the battery was replaced other than that there's nothing wrong with it.