Diesel Fuel Catalyst, 12 oz Designed for use in all diesel engines – compensates for latest low-sulfur fuels. Diesel Fuel Catalyst and 85 Plus are products with the same chemistry. Promotes better fuel combustion and fuel system lubrication. Provides faster ignition, reduced detonation and smoke, improved efficiency. Powerful high-temp detergents to clean fuel injectors. Lubricates O-rings and seals to increase injector pump life, reduces ring friction. Contains cetane booster for added power benefits. Available in winterized formula, reduces pour point of typical fuel by 25�F. Use one bottle per tank-treats up to 100 gallons.