Slow crosshead speed
Cylinder:- Sulphur acid neutralisation
- Scuffing prevention
- Good film strength
- Piston, ring and port cleanliness
- Antiwear properties
- Compatible with system oil
- SAE 50
Medium speed trunk piston
Crankcase:- Control piston deposits and prevents ring sticking
- Lubrication consumption control
- Sludge and lacquer control
- Rust control and alkalinity retention
- Neutralise combustion acids
- Protect bearings from corrosion
- Impart EP properties
- SAE 30 & SAE 40
Classification of marine diesel engines
| Type |
Speed - RPM |
Bore - MM |
| Slow Speed |
65-150 |
260-1000 |
| Medium Speed |
230-750 |
300-650 |
| Medium High Speed |
600-1500 |
200-400 |
| High Speed |
600-2250 |
100-200 |
back to top