What to do with 2 year old gas.

I just used what was in the tank of a car I'm scraping, & by the looks of the car, the gas has been in it for a couple years. It was about 7-8 gals. so I put in my 01 Ram. With the fuel it had in it & some Sta-Bil, I haven't had any problems. Gas just costs too much to waste these days. I heard a lot of other good suggestions on this question too.