Prevents fuel gelling in temperatures as low as -40 degrees F (Fahrenheit). Equals performance of a 50/50 blend of No. 2 and No. 1 diesel fuels. Lowers CFPP (Cold-Filter Plugging Point) as much as 36 degrees F, keeps fuel filters from plugging with wax, and keeps injectors clean. Boosts cetane up to 4 numbers for faster cold starts. Contains Slickdiesel Lubricator for maximum fuel lubrication which protects pumps and injectors from accelerated wear. Anti-icing additive protects against fuel filter icing. Wax anti-settling dispersants protect against fuel filter plugging at temperatures below the fuel cloud point. Disperses water in diesel fuel. Effective in all diesel fuels, including ULSD (Ultra Low Sulfur Diesel) and biodiesel blends containing up to 20% biodiesel (B-20).