RL Anti Gel Diesel Fuel Additives. For diesel operation in extremely cold climates. Available in different levels of concentration, these products provide the detergency, lubrication, and faster combustion for today's diesel fuels. All Red Line Diesel additives comply with federal low-sulfur content requirements. Rather than creating new products in the diesel category, Red Line reformulates these products often to ensure that they meet the changing demands of the latest diesel fuels. Winterized formulas use pour-point reducers to keep wax in suspension and reduce wax crystals that pass through filters and injectors. Product Details: Sold as 15oz Improves low-temp operation by preventing crystallization, gelling and freezing