Old fuel has been sitting for over a year?

Tiny
RHEM198
  • MEMBER
  • 1998 HONDA CIVIC
  • 1.6L
  • 4 CYL
  • TURBO
  • 2WD
  • MANUAL
  • 130,000 MILES
The car is currently running on E85 fuel, it's been sitting for over a year, save there's currently half a tank full. Gave her a full tune up (plugs, wires, distributor cap, oil) question is do I leave the old fuel and mix it with new fuel, or should I drain the tank and fill her with all new fuel?
Tuesday, May 30th, 2023 AT 1:04 PM

1 Reply

Tiny
KEN L
  • MASTER CERTIFIED MECHANIC
  • 47,513 POSTS
It is best to drain the old fuel out before installing new fuel to be safe, here is a video on how to siphon the tank to help you with your car. Also, I would change out the fuel filter.

https://youtu.be/Q5MH2gnyFH0

Check out the images (below). Please let us know if you need anything else to get the problem fixed.
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Tuesday, May 30th, 2023 AT 7:28 PM

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