Iso-HEET Premium Fuel-Line Antifreeze, Water Remover and Injector Cleaner: * Number 1 selling brand of premium gas-line antifreeze * Absorbs 5 times more water than regular gas-line antifreeze * Designed for year-round use in all 2-cycle, 4-cycle gas and diesel engines * Effectively removes water from fuel system preventing gas-line freeze up, rust formation and corrosion