[Herb Concord Ca]

On my Slant T/S the car had not been driven for at least 10 years. Took firewall valve off, installed a short length of pipe to attach a plastic hose. Started with 2 gallons of gas in the tank. plastic hose held about fuel level. using two people rocked the car side to side. Then filtered the gas using blue paper shop towels. put gas back into the tank and repeated about 20 times, at the end could barely see any stuff on the paper towels. Declared it clean installed an inline filter. Been running fine with same filter for over 15 years.