Power Service 08016-09-9PK Diesel 9&bull;1&bull;1 Fuel Additive - 16 oz., (Pack of 9) De-ices frozen fuel-filters and reliquaries gelled fuel Prevents fuel-filter icing Removes water from fuel system - extends life of fuel-filters, fuel-injection pumps and fuel injectors Contains Slick diesel Lubricator for maximum fuel lubrication that protects pumps and injectors from accelerated wear Effective in all diesel fuels, including Ultra Low Sulfur Diesel (ULSD) and biodiesel blends containing up to 20 percent biodiesel (B20)