Show GOOD OIL PREVENTS SPARK PLUG FOULING Burning of or the gasoline and lubricating lubricating lubricating ing oil in the cylinders by the explosion explosion explosion sion of the gases ca causes ses carbon which is In solution in both liquids to free itself and adhere to the cylinder walls was spark plugs and pistons In the form of nearly pure carbonA carbon A A. high grade of or oil with th the proper gasoline mixture and tight piston rings linAs which will wilt keep surplus oil below blow the the- pistons where it t belongs be will wUl reduce spark plug pIuS fouling to the h m minimum |