Ultra 9 Series
Heavy-Duty

Ultra 9 Series

Ultra 9 Series is a multigrade heavy-duty diesel engine oil formulated with high-quality virgin base oils and carefully selected additive technology to deliver reliable engine protection and long service life. Designed for demanding on-road and off-road operating conditions, it provides excellent resistance to wear, oxidation, corrosion, and deposit formation while helping maintain engine cleanliness and performance. Its balanced alkalinity reserve helps neutralize acidic combustion by-products associated with sulfur-containing diesel fuels, supporting extended oil drain intervals and dependable engine durability.

Available Grades (SAE)

Product Applications

The Ultra 9 Series from MAG Lubricants is designed for naturally aspirated and turbocharged heavy-duty diesel engines operating across a wide range of service conditions. Suitable for passenger cars, light commercial vehicles, trucks, buses, agricultural equipment, construction machinery, and other heavy-duty applications, it provides reliable protection in both on-highway and off-highway environments. The series is recommended for diesel engines requiring API CF-4 performance levels or earlier specifications, where dependable wear protection, engine cleanliness, and long service life are required.

Key Specifications & Performance Claims

API CF-4/SG

Product Features

  • Effective Deposit Control: Formulated with balanced detergent and dispersant technology to help control deposits, sludge, and contaminants, supporting cleaner engine operation and long-term performance.
  • Outstanding Oxidation Stability: Resists oil degradation caused by heat and oxidation, helping maintain lubricant performance and extend service life.
  • Reliable Wear Protection: Provides robust protection against wear and mechanical stress, helping extend engine life and maintain dependable performance.
  • Enhanced Thermal Stability: Maintains lubricant integrity under elevated operating temperatures, ensuring consistent protection in demanding service conditions.
  • Fuel Economy and Deposit Control Benefits: Helps improve fuel efficiency while effectively controlling soot accumulation and piston deposits, supporting cleaner and more efficient engine operation.
  • Anti-Foam and Corrosion Protection: Contains advanced anti-foam and anti-rust additives to ensure stable lubrication performance and protect critical engine components against corrosion.