Upper Cylinder Lubricant

Provides additional lubrication and protection to upper engine components and reduces carbon deposit formation on valves and injectors.

Upper cylinder lubricant is a special additive designed to coat and protect the fuel injectors, intake valves, and combustion chamber surfaces where regular engine oil cannot easily reach. It reduces friction and wear in these critical areas while helping to dissolve and prevent carbon deposits that can reduce engine efficiency and performance. This treatment is often used periodically as preventative maintenance or when engine knocking or hesitation occurs.

⚠️ Owners Often Notice

If the Upper Cylinder Lubricant is starting to fail, these are the signs owners most commonly report before it gets worse:

Related Services

Services commonly performed on or around this part.