[jonrick46]

I have read that gas degrade the longer it is stored? The use of gas stabilizers is recommended. Also, gasoline with ethanol (E10 or E85) has a shorter useful life if not kept completely sealed from the outside air, as water from the air will be absorbed by the ethanol and contaminate the gasoline. Comment?

[Myrddin]

I use only ethanol free fuel in my vehicles. Subzero temperatures turn water attracted by ethanol to damaging ice. A -27F night destroyed my fuel pump.

[1066AD]

I have read that gas degrade the longer it is stored? The use of gas stabilizers is recommended. Also, gasoline with ethanol (E10 or E85) has a shorter useful life if not kept completely sealed from the outside air, as water from the air will be absorbed by the ethanol and contaminate the gasoline. Comment?

Have had mower in shop twice this year, both times told it was due to the ethanol additive. Never used to be a problem until about a couple of years ago. I asked what a solution might be and was told buy ethanol free gas. It's a LOT higher price but going to try that.

Shop says they buy their gas for testing etc near daily so it doesn't deteriorate.

That's all I know !!