I have used year old fuel with stabil in it without any problems in my truck. And my truck is a 98 so it is fairly new. And i rotate out my fuel when it reaches 10 to 12 months, so a couple of cans get poured in the truck and the next trip to the gas station a couple of cans get filled back up and stored.

But a year is about my limit. Have seen people use much older gas by blending it with fresh fuel. Here is a link,

http://www.erie-county-ohio.net/does/recycling/gasoline.htm

Don't know if i would do this or not.