Lucas Upper Cylinder Lubricant & Injector Cleaner cleans and lubricates the entire fuel system while extending the life of pumps, valves, rings, and injectors. Works in both gasoline and diesel engines to improve fuel efficiency and cut harmful emissions.

• Upper cylinder lubricant and injector cleaner in one
• Cleans and lubricates the entire fuel system
• Extends the life of pumps, valves, rings, and injectors
• Solves low-sulfur diesel fuel lubrication problems
• Burns fuel more efficiently for greater MPG
• Reduces harmful emissions
• Use every fill-up to maintain peak performance
• Size: 1 gallon jug

Tip: The 1 gallon jug is sized for fleet and shop use - a steady supply for trucks, equipment, and high-mileage drivers who treat every fill-up.