Trunk Piston S2 40
Pure Tech Trunk Piston S2 40 is a multifunctional crankcase lubricant for highly rated medium-speed diesel engines operating on residual, blended or distillate fuels. Pure Tech Trunk Piston S2 40 has a BN of 20 and is designed for conditions of low oil stress.
PERFORMANCE, FEATURES & BENEFITS
Reliable engine performance:
- Extended oil life: Pure Tech Trunk Piston S2 40 is a BN 20 oil which can be used with multiple fuel types. Please contact your PureTech’s technical representative who will be able to offer additional support in product selection and guidance on extending oil life and minimising sweetening.
- Engine protection: Pure Tech Trunk Piston S2 40 has an optimised level of detergency leading to exceptionally clean crankcase, valve deck and pistons.
Main Applications:
Medium-speed industrial or marine propulsion and auxiliary engines, burning residual, blended or distillate fuel oils, which create conditions of low oil stress. These conditions usually occur:
- In newer engine designs, less than 10 years old
- Where oil consumption is > 1.5 g/kWh
- Where load factors are <70%
- Where fuels with sulphur <2% are in use
Pure Tech Trunk Piston S2 40 can also be used in marine engine reduction gears and certain other ship-board applications, where specialist lubricants are not required.
DOWNLOAD
Download PDF version file for Pure Tech Trunk Piston S2 40 is a multifunctional crankcase lubricant for highly rated medium-speed diesel engines operating on residual, blended or distillate fuels.
TYPICAL PHYSICAL CHARACTERISTICS
Technical data includes viscosity, density, flash point, and sulfur content. These characteristics ensure proper engine performance and compliance with environmental regulations, displayed comprehensively in the table below.
| PROPERTIES | METHOD | Trunk Piston S2 40 | ||
|---|---|---|---|---|
| SAE grade (viscosity class) | 40 | |||
| Kinematic Viscosity | @40°C | mm²/s | ASTM D445 | 131 |
| Kinematic Viscosity | @100°C | mm²/s | ASTM D445 | 13.7 |
| Viscosity Index | ASTM D2270 | 100 | ||
| Density | @15°C | kg/m³ | ASTM D4052 | 900 |
| Flash Point (PMCC) | °C | ASTM D93 | 230 | |
| Pour Point | °C | ASTM D97 | -9 | |
| Base Number | mg /KOH/g | ASTM D2896 | 20 | |
| Sulphated Ash | % m/m | ASTM D874 | 2.6 | |
| Load Carrying Capacity (FZG Gear Machine) | Failure Load Stage | ISO 14635-1 A /8.3/90 | 11 |
Health and Safety
HEALTH, SAFETY & ENVIRONMENT
Pure Tech Trunk Piston S2 40 is unlikely to present any significant health or safety hazard when properly used in the recommended application and good standards of personal hygiene are maintained.