how long does AV fuel keep?

[monoxide]

i have 30 gallons of av. fuel in my garage that might not get used up for a few months, how long does this stuff keep?

[Mike Fort Laud]

I build Airboats and Lycoming Aircraft engines and very familiar with Av-Gas. Av-Gas will not seperate like automotive fuel will. It also will not have that flat smell that old automotive fuel will have. Small piston powered aircraft will sometimes sit for months at a time before they are flown unlike cars that are driven every day.You will have no problem with it if you need to store it for a few months.

[Macs]

i worked in the aviation feild before i took my current career which is in the oil industry (yes i make av fuel, rocket fuel and even the fuel the shuttle uses). it will not loose anything until 18 months after process, which usaully is around 13 months for normal buyers. but there can be alot of factors averaged in. has it been opened to atmosphere what is the temp of the storage and what are you storing it in. metal will destroy a.v. fuel quicker then a senthetic/teflon storage tank. now if you are using the fuel in something non a.v. then the fuel will work a very long time after the 18 months. i am not sure how long but it is definatly alot longer. if you are using it in a plane then i would stick to the 18 months because you do not want to take any chances.

Barry Mann
instrumentation technician
EXXON\MOBIL
Baytown, TX

[krizo88]

It lasts longer than regular gas, just keep it sealed.

[monoxide]

awsome, thats great news guys. iam storing it in my garage (temp reaches 40f on occasion, but soon will be below zero. its in a plastic 30gal drum. and its shut(only been open for about 10 mins.) thats a releif, thanks guys.

[200Xtreme]

Ive heard of people using AV gas in their home generators, because after sitting for up to a year they still start and run fine.