Quote Originally Posted by SKYCHENEY View Post
It will burn. I know a guy who found an old underground tank at a contractors yard. The fuel was about 30 years old. They had it tested and the lab said it was okay. They filtered it, added some cetane boost, and burned in their trucks without issue. These were not new engines that require ultra low sulfur fuel, but older, pre-emission engines.
Cheyenne mountain which was the famous NORAD underground facility that was always depicted in nuclear war movies has limestone caverns filled with millions of gallons of diesel. The fuel had been pumped in in the 50’s. Up until the Obama administration when the facility was shut down and NORAD moved to Peterson AFB the generators were run weekly. And that fuel was 50+ years old.