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MAG 1® Premium Conventional 15W-40 CI-4+ Heavy Duty Diesel Engine Oil

Premium Conventional Heavy Duty Diesel Engine Oil Heavy Duty Engine Oil

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:


Unsurpassed protection.

  • FMX Technology. Provides unsurpassed protection and performance.


Outstanding wear protection.

  • Enhanced friction reduction. MAG 1 provides a very strong oil film to prevent metal-to-metal contact between rotating parts.


Excellent control of oxidation and deposits.

  • Excellent oxidation and deposit control. FMX Technology stands up to high heat and stress to protect as well on the last day as it does on the first day.
  • Formulated with higher starting TBN (12). Provides added oxidation control and protection against acid buildup that can cause rust and corrosion.


  • 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.

Industry/OEM Specifications

API CI-4 Plus Approved
API SL Approved
ACEA C4 Meets Requirements
ACEA E7, E2, E3 Meets Requirements
API CF Meets Requirements
API CG-4 Meets Requirements
API CH-4 Meets Requirements
API CI-4 Meets Requirements
CAT ECF-2, ECF-1-a Meets Requirements
CID A-A-52306, MIL-PRF-2104G Meets Requirements
Cummins 20078 Meets Requirements
Cummins CES 20078, 20076, 20071 Meets Requirements
Detroit Diesel Series 50/6013, Power Guard 93K215, N214 Meets Requirements
Ford M2C171D Meets Requirements
Global DHD-1 Meets Requirements
Mack EO-N, EO-M, EO-M Plus Meets Requirements
MAN 3275, 270 Meets Requirements
MB p228.3 Meets Requirements
Navistar International MTU Type I & II (Meets Engine Tests) Meets Requirements
Volvo VDS-3, 2, Meets Requirements

Typical Properties

Calcium, wt. % ASTM D5185 0.19
Cold Cranking Simulator at (°C), cP ASTM D5293 -20
Color ASTM D1500 3.5
Flash Point °C ASTM D92 220
Flash Point °F ASTM D92 428
Gravity, °API ASTM D287 29.97
High Temperature / High Shear Vis at 150°C, cP ASTM D5481 4.3
Magnesium, wt. % ASTM D5185 0.043
Molybdenum, wt. % ASTM D5185 0.006
Nitrogen, wt. % ASTM D4629 0.046
Noack Volatility, % loss ASTM D6375 12
Phosphorus, wt. % ASTM D5185 0.12
Pour Point °C (°F) ASTM D5950 -36°C (-33°F)
Pumping Viscosity at (°C), cP ASTM D4684 23,000 (-25)
Specific Gravity @ 60°F (15.6°C) ASTM D4052 0.8763
Sulfated Ash, wt. % ASTM D874 1.05
Sulfur, wt. % ASTM D4951 0.321
TBN, mgKOH/g ASTM D2896 12
Viscosity @ 100°C cSt ASTM D445 15.52
Viscosity @ 40°C cSt ASTM D445 118.2
Viscosity Index ASTM D2270 138
Zinc, wt. % ASTM D5185 0.132

Container/Bulk Availability

6/1 Quart - Not for sale in US Product Number - 64141
3/1 Gallon - Not for sale in US Product Number - 64143
5 Gallon Pail - Not for sale in US Product Number - 64145
55 Gallon Drum - Not for sale in US Product Number - 64146