This is the product of choice for optimal winter operation. Diesel Fuel Supplement(TM) Cetane Boost(TM) is the product to use for maximum winter operability. This Arctic Antigel formula effectively treats all diesel fuels to prevent fuel from gelling and keeps equipment running trouble-free through the cold winter months. Diesel Fuel Supplement(TM) Cetane Boost(TM) keeps fuel injectors clean and boosts cetane up to 4 numbers for faster cold starts and a smoother running engine.