Power Service 01016-09 +Cetane Boost Diesel Fuel Supplement - 16 oz. Prevents fuel gelling in temperatures as low as -40 degree Fahrenheit Lowers Cold Filter Plugging Point as much as 36 degree Fahrenheit; keeps fuel-filters from plugging with wax Contains Slick diesel lubricator for maximum fuel lubrication; protects pumps and injectors from accelerated wear and wax anti-settling dispersants; protects against fuel-filter plugging at temperatures below the fuel cloud point Disperses water in diesel fuel Effective in all diesel fuels, including ultra low sulfur diesel and biodiesel blends containing up to 20 percent biodiesel