Prolong Super Lubricants' Fast Fuel concentrated commercial grade diesel fuel treatment improves the fuel economy and performance of heavy duty diesel work trucks and commercial vans.

Prolong's commercial grade diesel fuel treatment is formulated with premium detergents that remove gum, deposits and sludge buildup from injectors and the entire fuel system. The result is better fuel economy and less black smoke, as well as protection against fuel system corrosion and premature wear of pumps and injectors.     

The diesel fuel treatment is poured into the vehicle's fuel tank before fueling with just one to two ounces needed to treat 10 gallons of diesel fuel. The 12-ounce bottle of fuel treatment can treat 60 to 120 gallons, and it is also available in five-gallon pails and 55-gallon drums.