Lube Advisor

MAG 1® SAE 40 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 4.5
Flash Point °C ASTM D92 208
Flash Point °F ASTM D92 406
Gravity, °API ASTM D287 27.95
Phosphorus, wt. % ASTM D5185 0.116
Pour Point °C (°F) ASTM D5950 -27°C (-17°F)
Specific Gravity @ 60°F (15.6°C) ASTM D4052 0.8874
TBN, mgKOH/g ASTM D2896 7.5
Viscosity @ 100°C cSt ASTM D445 13.25
Viscosity @ 40°C cSt ASTM D445 127.5
Viscosity Index ASTM D2270 98
Zinc, wt. % ASTM D5185 0.132