• 1 - 2: $7.99
• 3+: $6.99

Formerly labeled as Diesel Hi-Test, Lubro-Moly Super Diesel Additive reduces fuel pump wear, extends equipment life, improves engine performance and emissions control. Also prevents rust and contamination in the fuel tank, pipes and injection system. Improves fuel economy. Super Diesel Additive now contains a lubricity additive against excessive fuel pump and injector wear with low-sulfur diesel fuels. One can treats up to 20 gal. of diesel. For best results, add regularly to fuel. Comes in a 300 ml can.