My car has been sitting about three years now since I parked it in my garage. I put stabil in the tank and ran it for a while before parking it three years ago. The tank was maybe around 1/4 full. Is the gas any good or should I try and remove it and replace before I try starting again?

 

It would not hurt to siphon the old gas out and put some fresh stuff in.

 

Siphon it out and use it in your lawnmower.

 

My gas had been in the car for 13 years. I used it in the lawn mower (still worked) and as a parts cleaner.