Gas, how old is to old?

Ok, thanks for the explanation! I had not heard that term before. I'm in California, so will check this weekend when I go to the pump.

If I think I might have run some older gas (year or two) through my car recently, is there anything I can do to head off trouble? Like adding a fuel additive, such as Gumout, STP, etc?

Thanks!

i've been burning 5 YO gas in my mower that i've siphoned out of an old tank. the gas was treated w/ stabil before storage, but the mower runs fine. it ran so well that i've also been putting ~1 gallon in my daily driver in between every fill-up.

Ok, thanks for the clarification on that. I usually learn more from these postings than from reading the newspaper!

Have any of you guys tried products like Gumout, etc Fuel System Cleaners? Does this stuff have any real benefit to our classic Mopar's fuel system? Does it cause any harm?

Thanks!

Most gasoline fuels are blended for an average shelf life of three months. Ethanol attracts water and that does not help, so the humidity in your area can have an effect, YMMV. Stabil works pretty well. I have found that old fuel gets a varnish smell to it, and at that point, I would drain it. Setting a car up for storage means draining all fuel or at the least, adding a stabilizer and topping off the tank so there is no room for condensation to develop.

I have about 7 gallons of old gas out of my 69 Coronet that I can't seem to get rid of. I drained the tank when I first got the car. The tank was rusted out and the gas smelled like varnish (and stunk up the garage). There wasn't much guessing the gas was bad though. The smell was very obvious.

If anyone wants it, you can come get it (Schaumburg, IL). Otherwise I have to wait until next month (June) when they collect hazardous waste in my area. The fire dept. won't take it and neither will any auto supply or "quick oil change" in my area... and I don't have a lawn mower. We have landscapers.

I pumped out 15 or so gallons out of a Truck tank and ran it in my '88 TBI-Injected daily driver D-100. Ran fine. The gas didnt smell bad or anything, smelled like gasoline.

I just syphoed out about 5 gallons of old gas and to get read of it I put it out side in 2 big open pans and about 2 or 3 weeks later it was all evaporated away totally ,,,,,,,,, on the rainy days I put a sheet of plywood over it seemed to work good for me but I was real nervous that somebody might flick a cigerette and start a inferno real glad its all gone its hard to get rid of old gas cause nobody in my area will take it.......