3MMMM-8813Fuel System Cleaner - Superior Performance, Enhanced Fleet Efficiency The 3M Fuel System Cleaner MMM-8813 is a powerful tank additive designed to optimize fuel system performance and improve overall fleet efficiency. This cleaner effectively removes deposits, cleans fuel injectors, and helps restore lost power and fuel economy. By ensuring a clean and properly functioning fuel system, the 3M MMM-8813 minimizes downtime, reduces maintenance costs, and extends the life of critical engine components, making it an essential addition to any professional fleet maintenance program.