MAG 1® SAE 50 CF‑4 Heavy Duty Diesel Engine Oil

Monograde Heavy Duty Diesel Engine Oil Heavy Duty Engine Oil

Featuring MAG 1® with FMX® Technology – Friction Management for Xtreme protection™. Provides unsurpassed protection for new and old engine designs. 


  • FMX Technology provides unsurpassed protection.


  • FMX Technology provides a very strong oil film to prevent metal-to-metal contact.


  • FMX Technology stands up to high heat and shearing to protect as well on the last day as it does on the first day.


  • For older diesel engines.

Industry/OEM Specifications

API CF-4/SG Meets Requirements

Typical Properties

Calcium, wt. % ASTM D5185 0.346
Color ASTM D1500 5.5
Gravity, °API ASTM D287 26.62
Phosphorus, wt. % ASTM D5185 0.116
Specific Gravity @ 60°F (15.6°C) ASTM D4052 0.8949
TBN, mgKOH/g ASTM D2896 7.5
Viscosity @ 100°C cSt ASTM D445 18.77
Viscosity @ 40°C cSt ASTM D445 212.6
Viscosity Index ASTM D2270 98
Zinc, wt. % ASTM D5185 0.132

Container/Bulk Availability

5 Gallon Pail - Not for sale in US Product Number - 64127
55 Gallon Drum - Not for sale in US Product Number - 64128
3/1 Gallon - Not for sale in US Product Number - 64125
6/1 Quart - Not for sale in US Product Number - 64123