Ultra Diesel Engine Oil

The Ultra Diesel Plus High Mileage Oils are a range of premium quality lubricants engineered for lubrication of a wide range of diesel engines. Especially suited for high speed, naturally aspirated and turbo-charged four stroke diesel engines in the construction and road transport industries over 75,000 miles or 120,000 km.

Ultra Diesel Engine Oil

Ultra Diesel Engine Oils are manufactured in SAE 30, 40 and 50 grades, and are formulated from hydro-treated base stocks and a balanced additive package which provide for protection against:

  • High-temperature deposits
  • Bearing corrosion
  • Corrosion and Rust
  • Oxidation

Performance Specification

The Ultra Diesel Engine Oil range of lubricants meets or exceeds the test requirements of:

  • API CF, CF-2
  • American Military MIL-L-2104D/E, MIL L 46152D


The use of Ultra Diesel Engine OilSAE 30, 40 and 50 grades would result in:

  • Protection against bearing corrosion
  • Low piston-zone deposits
  • Ring-stick prevention
  • Control of viscosity breakdown
  • Control of visGood detergency and dispersancycosity breakdown


Main Applications

Small and medium powered naturally aspirated diesel engines.


Certain naturally aspirated diesel engines in road transport service, operating under moderate to low loads.

Two-stroke cycle engines requiring highly effective control over cylinder and ring-face scuffing and deposits.

Typical Properties

SAE Viscosity GradeJ 300304050
Kin. Viscosity @ 40°C-cStASTM D44595.00160.20224.00
Kin. Viscosity @ 100°C-cStASTM D44510.8515.3019.00
Viscosity IndexASTM D2270989695
Specific Gravity, 60/60°FASTM D1298.88290.88610.8902
Pour Point, °CASTM D97-33-24-21
Closed Flash Point, °CASTM D93232238240
Zinc Content, {4bec3909aa5095a21088ec4d6c498a2c09112ed4671fc3b71ae54ed22d435f9d} wtIP 30ASTM D4739.1240.124.124
TBN, mg KOH/gASTM D47399.009.009.00

Health & Safety

Ultra Diesel Engine Oil is unlikely to pose any health or safety hazards when used in the recommended applications, provided good standards of personal and industrial hygiene are observed.