T-ster

How long will 2 gallons of fuel in a 5 gallon plastic can stay good, if stored in an temperature controlled environment? I have a ZDZ 80 that is running slightly rough (missing every +/-5 seconds at 1/4-1/2 throttle), but noticed the fuel I'm using was mixed on 9/04/09, almost one year ago. I figure it definitely could cause an issue, correct? (I leaned it, but the missing did not improve and made the idle rough and hard to start.)

AH1G

I figure that any fuel in an opened container should NOT be stored more that a few months. Gas does go bad over the winter.

All Day Dan

My Feedback: (5)

Get a fresh supply of gas and see if the symptoms go away. Dan.

w8ye

My Feedback: (16)

I have had it around a couple years and it ran OK

It is best in your case to do like the one post says and get some fresh fuel and compare them

T-ster

Thanks for the responses. The fuel in question is now slated for the weedeater. Bought new gas tonight and will hopefully give it a test tomorrow.

captinjohn

Fuel can go bad fast if container is not airtight. Do not buy only the amount you will use up right away. Buy fresh & search for good gas in the first place....some is crap or next to it in west Mich Smooth Landings Capt,n

STUKA BARRY

I never keep fuel more than 3 weeks. I mix 1 1/2 gals at a time, if after 3 weeks its not gone, then it gets dumped in the oil barrel and fresh gas is purchased. Gas is relatively cheap to replace and eliminates a bad fuel situation to arise.

tail strike

My Feedback: (1)

What's a-matter you, you need to fly more !

Charlie P.

With oil mixed in? Some 2-cycle oils have stabalizers added that will (may?) keep fuel fresh longer than unmixed gasoline.

I keep a one gallon can for the field and a two gallon can to mix in or divy up with assorted chainsaws, tiller, snowblower and an outboard. They all get the same mix except when I am breaking in an engine. Keeps things fresh.