Featuring FMX® Technology that provides unsurpassed protection and performance.

Valve cover gasket leaks cause 80% of all oil leaks. Our heavy-duty formulation revitalizes gaskets and seals. Chemically engineered to provide maximum performance and engine protection.

Benefits of MAG 1® Engine Stop Leak include:

• Provides a thick cushion of oil to help stop oil burning and excessive smoking.
  
• Can be used with all types and grades of motor oil, including graphite and synthetic oil.
  

Evolutionary Performance™

OEMs continue to evolve engine and vehicle systems. One brand has evolved right alongside – MAG 1®. Only the most advanced automotive fluids meet the difficult challenges of effectively balancing performance, strength and durability. 

Powerful Chemistry and Performance 

MAG 1® helps improve your vehicle’s longevity and performance.