OK, maybe this isn't relevant, but it is about avgas. There is an old Cherokee at my home field that sat for years. It was flown in '89 and didn't have an annual until '98. It flew once that year, on the same fuel from '89. It was finally pulled from its hangar about three years ago, due to non-payment of the hangar rental (all of $43/mo.) The airport took legal ownership of it to cover the back rent. A mechanic here bought it from the airport, drained the sumps, put in a new battery, and it started on the second blade. New tires, lots of AD's and fixes and it should be flying by summer. I don't know if he will drain the old fuel or just fill it up. (I know what I'd do.) I would think that answers the need for fuel stabilizers.
Is it any wonder lots of people around here have there standby home generators fueled with avgas? Good stuff, no matter what some gov't agencies think.
Bob Kelly