When is gas too old?

[hl]

I have two tanks on my Ranger. Both tanks were filled the middle of June. We used one tank as a reserve when the the primary tank ran dry. The reserve tank is about 1/2 full. Should I drain the reserve tank or just add gas with seafoam?

 

[Bifflefan]

Re: When is gas too old?

Its fine.
The gas in the tank at the gas staion is older than that.

 

[laker2]

Re: When is gas too old?

gas starts to go downhill now after 1 month, i use a bit of sea foam in every tank

 

[Nutt]

Re: When is gas too old?

It has always been my understanding that Car fuel varnishes after 30 days. A additive does help a lot. I like staybil or sea-foam for marine use.

 

[444]

Re: When is gas too old?

Modern gas breaks down quickly and ethanol mixed fuel even faster. Temperature has a lot to do with it as well. In the cool ground the fuel will last longer than in a hot gas tank. Truth be told, in my quads I run the ethanol "enhanced" fuel and leave them to sit for a month between uses sometimes in the summer with no issues. I just do stabil before I let them sit for the winter. But 2-strokes are more picky so I throw stabil in there just so if something does happen I can't blame it on bad fuel.