Lube Advisor

Synthetic Blend Heavy Duty Diesel Engine Oil

Heavy Duty Diesel Engine Oil

Featuring MAG 1® with FMX® Technology – Friction Management for Xtreme protection™. Provides unsurpassed protection, even in our lightest viscosities. Our Synthetic Blend provides extra protection and performance.

Our complete family of Synthetic Blend Heavy Duty Diesel Engine Oils provide extra protection and performance, compared to Conventional Engine Oil.

Protection for Today’s Engine Designs

As today’s engines are evolving and heavy duty engine manufacturers are recommending thinner, lighter oils, MAG 1® has evolved right along with them. Only the most advanced engine oils meet the difficult challenges of effectively balancing durability, extending drain intervals and protecting emissions control devices.

Unsurpassed Protection, Even in the Lightest Viscosity

MAG 1® with FMX® Technology provides unsurpassed protection in every viscosity. Even our lowest viscosity oils protect better than thick oils of the past. 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, in spite of severe engine temperatures. MAG 1 also delivers greater horsepower and improved fuel economy. 

Synthetic Blend Heavy Duty Diesel Engine Oil featuring FMX® Technology and Evolutionary Performance™

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

Performance

Outstanding protection for extended drain intervals.

Up to 1.6% improved fuel mileage with HD 10W-30 grade.¹ 

Strength

Up to 53% better wear protection.  

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Durability

Up to 83% better oxidation control.² 

Up to 63% better deposit control.²

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¹ Using HD 10W-30 CK-4, compared to Conventional HD 15W-40 CK-4 during on-highway long-haul service. Savings will vary on idle time and other driving conditions of your fleet or vehicle.

² Compared to new limits of API CK-4 requirements.

Synthetic Blend Heavy Duty Diesel Engine Oil

MAG 1® Synthetic Blend 15W‑40 CK‑4 Heavy Duty Diesel Engine Oil

MAG 1 Synthetic Blend 15W‑40 CK‑4 is technologically advanced heavy duty diesel engine oil that provides extra protection and performance, compared to Conventional Engine Oil.

Product Details 
HDDEO Synthetic Blend 15W-40 CK-4
Synthetic Blend Heavy Duty Diesel Engine Oil

MAG 1® Synthetic Blend 10W-30 CK-4 Heavy Duty Diesel Engine Oil

MAG 1 Synthetic Blend 15W-40 CK-4 is technologically advanced heavy duty diesel engine oil that provides extra protection and performance, compared to Conventional Engine Oil.

Product Details 
HDDEO Synthetic Blend 10W-30 CK-4 Front