NP Super Duty 2T 40


NP Super Duty 2T 40 is a high quality, low-medium ash lubricant, designed to meet the lubrication needs of naturally aspirated and turbo-charged two-stroke diesel engines. The use of NP Super Duty 2T 40 will reduce the occurrence of exhaust valve distress.

It meets the performance requirements of Detroit Diesel Type 1 and Type 2 lubricants for two-cycle lubrication as specified by DDC Publication 7SE270 0102, "Lubricating Oils, Filters, and Fuels".

NP Super Duty 2T oils are formulated from premium quality hydro-treated base stocks and a balanced additive package resulting in good film strength and high load carrying ability. Super Duty 2T 40 provide for enhanced:

  • Detergency and Dispersancy
  • Cylinder and Piston ring wear performance 
  • Corrosion and Rust Protection
  • Oxidation Stability
  • Deposit Control
  • Thermal Stability


The NP Super Duty 2T 40 meets or exceeds the test requirements of:

  • API CF-2, CF
  • Detroit Diesel 6V92TA


The use of NP Super Duty 2T 40 would result in:

  • Protection against bearing failure
  • Low piston-zone deposits and ring-stick prevention 
  • Reduced wear of valve train and engine components
  • Reduced port plugging
  • Control of viscosity increase
  • Protection against bore polish
  • Control of varnish build-up and protection against corrosive attack
  • Protection against cylinder and piston ring scuffing



  • Two-Stroke Diesel Engines where API CF-2, SAE 40 lubricants are recommended
  • Detroit Diesel Series 53, 71, 92 and 149 (Marine) Two-Stroke Engines.


SAE Viscosity Grade J 300 40
Kin. Viscosity @ 40°C, cSt ASTM D445 160.20
Kin. Viscosity @ 100°C, cSt ASTM D445 15.30
Viscosity Index ASTM D2270 96
Specific Gravity 60/60°F ASTM D1298 0.8861
Pour Point, °C ASTM D97 -24
Closed Flash Point, °C ASTM D93 238
Zinc Content, % wt IP 308 0.124
Sulphated Ash, % wt ASTM D874 0.8
TBN, mg KOH/g ASTM D4739 9.0

Health and Safety

NP Super Duty 2T 40is 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.
Revision Date 10/06/09