How to Remove Fuel from Gas Tank


Asked by Jun 12, 2014 at 02:46 PM

Question type: Maintenance & Repair

I have a 1999 Trans Am that has been sitting with about an 1/8 of a tank of gas in it for several years.  We occasionally start the car and run it in place for a few minutes.  What is the best way to clear out the old gas.  Should in put a fuel additive in the tank and burn up the old gas or should I remove the old gas from the tank.  If I use a fuel additive which is the best for the job.  If I remove the gas what is the easiest way to do that?  Thanks

1 Answer


You could try to siphon out as much as you can, then put in good fuel with some Marine Sta Bil fuel additive. Fuel filters will be the first thing to plug up as you might have buildup inside the tank from setting so long with such a small amount of fuel in the tank, so don't be surprised if after you get it running that the fuel filter plugs up and the fuel pump fails shortly after.

Your Answer

Add photo

Related Questions

  • How to remove fuel from tank 2 answers

    Changing fuel pump and filter

    1993 Pontiac Sunbird 2 Dr SE Coupe


    Maintenance & Repair

  • How to remove gas from 84 fiero? 6 answers

    How do I remove fuel from the tank of an 84 fiero se without dropping the tank? I've heard about connecting a hose near the fuel pump, and I've also heard siphoning, but i can't get a hose deep en...

    1984 Pontiac Fiero SE or Indy


    Maintenance & Repair

  • fuel tank 1 answer

    how to remove the fuel tank. can axcess be gained thru rear seat floor panel. is there a removable floor panel for the rear seat.



    Maintenance & Repair

  • how do i remove the fuel pump on 2003 pontiac aztec 3 answers

    gas gage goes up and down

    2003 Pontiac Aztek AWD


    Maintenance & Repair

  • siphoning gas from the tank 3 answers

    the tank has a leak but cant siphon the gas out

    2004 Pontiac Vibe Base AWD



Search Pontiac Questions

Pontiac Experts

#1 tenspeed
Reputation 11,250
#2 Tom Demyan
Tom Demyan
Reputation 8,730
#3 Js08016
Reputation 8,030
View All

Content submitted by Users is not endorsed by CarGurus, does not express the opinions of CarGurus, and should not be considered reviewed, screened, or approved by CarGurus. Please refer to CarGurus Terms of Use.