Gas tanks that sit outside for an extended period must be thoroughly cleaned to be used again. A dirty tank may contain old gas that can't burn, rust and other debris. Using dirty, old gas can damage a vehicle.
- Skill level:
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Things you need
- Rust remover or cleaning agent for gas tanks
- Hot soapy water
Empty the gas tank. Old gas can be taken to a burn pit, recycling center or hazardous waste facility. Call you local waste disposal authority for details.
Flush the gas tank thoroughly with water.
Add the rust remover or cleaning agent and agitate the liquid around the inside the gas tank. For best results, follow the instructions on the cleanser's label.
Dispose of the cleaning agent as recommended. If there are no instructions, simply pour the liquid back into the original container, seal tightly and throw away.
Pour hot, soapy water into the gas tank and shake. Pour out and repeat several times.
Allow the tank to dry completely before filling with gas or reattaching to a vehicle.
Tips and warnings
- You can find gas tank cleaning agents at your local auto parts store.
- Gas is highly flammable. Exercise caution and do not strike any fire. Also beware of cleaning agents that typically are poisonous.
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