Lucas Oil Upper Cylinder Lube and Fuel Treatment

Lucas Oil Upper Cylinder Lube and Fuel Treatment is a professional-grade fuel additive engineered to restore critical lubrication and enhance engine performance across both gasoline and diesel applications. This concentrated, high-detergent formula contains no alcohol, solvents, kerosene, or harmful additives — making it one of the safest and most versatile fuel treatments available for virtually any engine type or fuel delivery system.

Why Modern Engines Need Additional Lubrication:

Today's ultra-low sulfur diesel (ULSD) and reformulated gasoline (RFG) are stripped of essential lubricating compounds during the refining process to meet emissions regulations. Lucas Upper Cylinder Lube and Fuel Treatment replenishes these vital lubricants with a super-slick oil and additive blend that promotes more complete combustion, protects critical fuel system components, and helps deliver measurable fuel economy improvements that can offset the cost of regular treatment.

Key Features & Benefits:

• Lubricates piston rings, cylinder walls, valves, and upper cylinder components to reduce wear and extend engine life
• Cleans and protects carburetors, fuel injectors, and fuel pumps by eliminating carbon deposits and varnish buildup
• Increases combustion efficiency for improved power output and fuel economy
• Reduces harmful exhaust emissions through more complete fuel combustion
• Neutralizes the harmful lubricity-reducing effects of ultra-low sulfur diesel (ULSD)
• Negates the negative impacts of reformulated gasoline (RFG) on fuel system components
• Safely replaces lead additives without producing harmful emissions — ideal for vintage, classic, and high-compression engines
• Complies with federal low sulfur content requirements for use in diesel motor vehicles, non-road, locomotive, and marine diesel equipment engines
• Compatible with all gasoline and diesel fuel delivery systems — carbureted, fuel-injected, and direct-injection

How to Use:

Add Lucas Upper Cylinder Lube and Fuel Treatment directly to your fuel tank at fill-up. The recommended dosage is 2–3 ounces per every 10 gallons of gasoline or diesel fuel. Exceeding the recommended dosage is not harmful, and the product can be used at every fill-up as part of an ongoing maintenance routine.

Trusted by professional mechanics, fleet operators, farmers, and motorsports enthusiasts worldwide, Lucas Oil Upper Cylinder Lube and Fuel Treatment is a proven solution for maximizing the performance, efficiency, and longevity of any gasoline or diesel-powered engine — from everyday commuter vehicles and classic cars to heavy-duty commercial trucks and off-road equipment. Available in multiple sizes to suit individual drivers, professional shops, and high-volume fleet applications.