Hot Shot's Diesel Winter Anti-Gel works to lower the cold filter plugging point (CFPP) of your diesel fuel. This fuel additive helps prevent clogged fuel filters and fuel lines during cold winter months. Diesel Winter Anti-Gel also improves the quality of standard diesel fuels in terms of detergency, stability, lubricity, winter operability, and even boosts the fuel's cetane number. | Hot Shot's Secret Diesel Winter Anti-Gel | Size 16 oz