Featuring MAG 1® with FMX® Technology – Friction Management for Xtreme protection™. Delivers unsurpassed protection when thicker oil is preferred or recommended by the OEM.

MAG 1® Premium Conventional 15W-40 CI-4+ is technologically advanced heavy duty diesel engine oil that provides outstanding performance, including the following benefits:

• Recommended for use in pre-2007 heavy-duty applications and operating environments found on and off highway, including engines operating under heavy loads.
  
• Backward compatible with diesel engines in which the API CI-4+, earlier service categories are recommended.
  

Engineering and Innovation for Extra Protection

MAG 1® with FMX® Technology provides unsurpassed protection in every viscosity. FMX Technology creates a strong, durable and high-performing level of protection that controls friction and reduces metal-to-metal contact.

Our advanced oil technology actually improves oil properties over time, retaining viscosity, friction and anti-wear benefits, even in today’s hotter engines. This is exactly the kind of protection called for in today’s engines that deliver greater horsepower and better fuel economy.    

Premium Conventional Heavy Duty Diesel Engine Oil featuring FMX® Technology and Evolutionary Performance™

The latest MAG 1 Heavy Duty Diesel Engine Oils are specially engineered and formulated to provide:

Applications

• For pre-2007 diesel engines in which the API CI-4+ service category is recommended.
  
• It is backward compatible for CI-4+ and older API service categories.