Ultra Diesel Engine Oil


The Ultra Diesel Engine Oils are a range of premium quality heavy-duty crankcase lubricants, designed for the lubrication of naturally aspirated and turbo-charged diesel engines, operating under moderate to severe duty conditions and engines operating on higher sulphur fuels.

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 Specifications

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
  • Good detergency and dispersancy


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 Grade J 300 30 40 50
Kin. Viscosity @ 40°C-cSt ASTM D445 95.00 160.20 224.00
Kin. Viscosity @ 100°C-cSt ASTM D445 10.85 15.30 19.00
Viscosity Index ASTM D2270 98 96 95
Specific Gravity, 60/60°F ASTM D1298 .8829 0.8861 0.8902
Pour Point, °C ASTM D97 -33 -24 -21
Closed Flash Point, °C ASTM D93 232 238 240
Zinc Content, % wt IP 30ASTM D4739 .124 0.124 .124
TBN, mg KOH/g ASTM D4739 9.00 9.00 9.00

Health and 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. Please refer to Material data Sheet (MSDS) for further information.