How to Clean Out a Rusty Gas Tank
- 1). Remove any gas that may be remaining in the tank.
- 2). Pour two to three gallons of acetone into the gas tank.
- 3). Drop metal washers and nuts in the tank and then cap it.
- 4). Shake the entire tank for five to 10 minutes at a time. Pour out the acetone and replace with new. A partner can help you with this.
- 5). Continue this process with clean acetone each time until the acetone being poured out no longer has a brown or rusty tint to it.