Lube Advisor

MAG 1® CNG/LNG 15W-40

CNG/LNG Engine Oil Heavy Duty Engine Oil

MAG 1 15W-40 CNG/LNG Engine Oil is formulated to deliver outstanding protection in a wide variety of compressed natural gas (CNG), liquefied natural gas (LNG) and liquefied petroleum gas (LPG) engine applications.

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, reducing the need for thicker oil. This is exactly the kind of protection called for in today’s engines that deliver greater horsepower and better fuel economy.

CNG/LNG Engine Oil featuring FMX® Technology and Evolutionary Performance™

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


Unsurpassed protection. 

  • Unsurpassed wear protection. The latest technology in engine oils provides increased protection against harmful engine and bearing wear due to cavitation, because they are engineered to improve oil aeration.


FMX® technology that minimizes friction and protects moving parts inside an engine.

  • Enhanced friction reduction. MAG 1 oils react to heat to produce a critical friction-reducing barrier to protect metal surfaces. 1


Outstanding long-term performance in service applications operating under high-load, high-stress conditions and in all seasons.

  • Excellent oxidation and deposit control. New engine design strategies for some OEMs result in higher operating temperatures and the need for greater protection. 

¹ To measure friction reduction benefits, engineers used the ball-on-disk traction test.    


  • For compressed natural gas (CNG), liquefied natural gas (LNG) and liquefied petroleum gas (LPG) engine applications.

Industry/OEM Specifications

Cummins 20074 Suitable for Use
Detroit Diesel 93K216 Suitable for Use

Typical Properties

Cold Cranking Simulator at (°C), cP ASTM D5293 6410 (-20)
Color ASTM D1500 1.5
Flash Point °C ASTM D92 223
Flash Point °F ASTM D92 433
Gravity, °API ASTM D287 30.27
Specific Gravity @ 60°F (15.6°C) ASTM D4052 0.8747
Sulfated Ash, wt. % ASTM D874 0.5
TBN, mgKOH/g ASTM D2896 5.6
Viscosity @ 100°C cSt ASTM D445 15.25
Viscosity @ 40°C cSt ASTM D445 118.6
Viscosity Index ASTM D2270 134

Container/Bulk Availability

55 Gallon Drum Product Number - 66887
Available in Bulk