AR6300 Winter Diesel Treatment is a concentrated fuel treatment which is added to every tank of diesel to boost performance, ensure fuel quality, protect your fuel system and protect against gelling in cold weather. AR6300 promotes a more complete combustion which improves efficiency, power and response. AR6300 Features -- Cold Filter Plugging Point Depressant: Prevents diesel fuel from gelling and plugging the fuel filter -- Lubricant: Protects fuel pump and injectors from wear and failure, lubricates upper cylinder -- Improves cetane up to 8 points -- Detergents: Removes soot and carbon from the fuel system and maintains component function