A guy from i-club stated that his uncle or something bought a lot (a parking lot full so he says) of gas from when it was $1.90 or so. Apparently, he still uses that gas.

I'm sure he's lying, but I'd love to point out a fact like gas expires or something other than, no one has that much money lying around, even at $1.90.

^^^hmm, id think that after a while stuff would start collecting on the bottle of the container, which probably would not be good for the engine. Im not entirly sure, there are so many other chemicals in the gas that who knows. It hasnt been 1.90 for a looooonnnnnngggggg time

i don't think it does expire. back in 1991 when there was a civil war in Bosnia and Herzegovina, my dad used to buy fuel and store it for a long time. 10-20 liters was used throughout the year. It probably looses some of it's original properties...but ehh...

Germany in WWII had lots of these fuel depots that weren't used as much. So I would say that it can last a long time.

Yep, it goes bad. It doesn't get to the point where it won't burn, but it's not very effecient.

^^^yeah it goes bad but it takes a while for it to break down to the point where it wont burn a few years in a large quanity, it also depends how good the gas was when he bought it...

gas kinda goes poo poo after a while...

Modern gas begins to degrade after only 3 months or so.

If you're going to keep gas around longer than that I'd recommend using a product like PRI-G to keep the fuel fresh.

Yeah it does go bad. That's why you have to put fuel stabilizer in your mower over the winter if it still has gas in it.

gas will start to lose the volatiles that make it burn, almost instantly in fact, just pour some gas on the ground and watch it evaporate, then try lighting the spot where it was on fire. It won't work. If it's kept in a sealed container, with some stabilizer, it will last a lot longer, up to a year or two, but it will likely not be as efficient.