Can I add fuel stabilizer in a car that has been stored for a few months already?

Question

The car has been stored and haven't been turned on for about 3-4 months and the gas has just been sitting there. Can I still add fuel stabilizers such as Sta-Bil to freshen up the gas or is it too late? If it is too late, do I need to suck out the old gas and replace it with new gas? I used Octane Rating 91 fuel if that helps.

Answer 1

you can add stabilizer to your fuel anytime you want.....but it wont bring it back.......only prevent it from getting worse........after you add the sta-bil .....run the engine to get the additive all the way to the injector,s/carburetor...........try to keep as large a quantity of treated fuel in the tank.......this should hold you till spring.

Answer 2

my recommendation is.remove and replace it.is not only the quality is also the moisture and the inherent acids might not only clog .but, also spoil something down, in the fuel line.