Sometimes we don't all manage to get out as often as we like and boats, trailers and campers can sit for months at a time without being used. In days gone by that would mean draining your fuel tank and refilling with fresh fuel, but not anymore. STA-BIL Fuel Stabiliser, when added to your fuel tank or jerry can, will preserve your fuel, keeping it fresh indefinitely. With an easy-measuring twin neck bottle, measurements are accurate, convenient and consistent time after time. Featuring 4-times the amount of fuel system cleaners than the standard STA-BIL, and removing any water from fuel to prevent separation, as well as preventing ethanol related damage in marine engines, STA-BIL Marine is specially designed for use in high moisture environments. When you consider that this 236ml bottle will treat 300L of fuel, it becomes a particularly cost-effective and attractive option.