Q: Does Gas Go Bad?

asked by on

Does gas go bad?

Gasoline, like milk, goes bad over time.

Gasoline is usually good for about 6 weeks before it starts to turn into a varnish-like substance. This varnish-y fuel is sticky and makes all of your fuel system components non-operational. If you intend to store gasoline for a longer period of time, there are some things that you can do to extend its storage life.

There are some commercially available fuel additives that stabilize gasoline for long-term storage, such as for lawn mowers and chain saws.

You can also store gasoline for an extended period of time if you fill an air-tight container and store the container in a cool, dark, dry location. Don’t forget the fuel stabilizer.

If you have a tank of bad fuel, that could lead to repairs in the hundreds of dollars, depending on whether or not the fuel has made it up to the fuel injectors. Draining the tank, replacement of components, hazardous waste fees, etc., and you can see the headache starting.

There’s an old adage that says “An ounce of prevention is worth a pound of cure.” You can pay a little now to protect your vehicle, or pay a lot later to repair your vehicle.

Was this answer helpful?
The statements expressed above are only for informational purposes and should be independently verified. Please see our terms of service for more details
  1. Home
  2. Questions
  3. Does Gas Go Bad?

Get an instant quote for your car

Our certified mechanics come to you ・Backed by 12-month, 12,000-mile guarantee・Fair and transparent pricing

Get a quote

What others are asking

Q: Leaking rubber fuel line

That is most likely the injection pump feed line that is leaking. This line, if leaking, will need to be replaced. The key must be off and out of the ignition to prevent accidental startup of the fuel feed...

Q: Car cannot pick up fuel

The first step is to check fuel pressure at the fuel rail. For your vehicle, pressure should be 30 to 40 PSI while running and 35 to 45 PSI with the engine off. Since you've already replaced the pump, if...

Q: Where in the car is the fuel pump relay located so I can replace it?

Hello, thanks for writing in to YourMechanic. The fuel pump relay is the orange relay located in the e-box. If you're uncomfortable with this repair, you may want to consider having a professional from YourMechanic come to your location to...

Related articles

How Long Does a Distributor O Ring Last?
The distributor is part of the ignition system in your vehicle and its purpose is to route high voltage from the ignition coil to the spark plug. The spark plug then...
P0052 OBD-II Trouble Code: HO2S Heater Control Circuit High (Bank 2 Sensor 1)
P0052 code definition HO2S Heater Control Circuit High (Bank 2 Sensor 1) What the...
P2103 OBD-II Trouble Code: Throttle Actuator Control Motor Circuit High
P2103 means there is a fault with the throttle actuator control motor circuit, likely due to a defective electrical component or part.