Zeal Marine XTPE 50 is a range of extra high performance 50 TBN marine diesel engine oils formulated with premium quality base stocks and high performance additive detergent technology to ensure optimum performance and protection for highly rated trunk piston engines. They are designed to operate efficiently in severe residual-fuelled medium-speed diesel applications found in marine and stationary power industries. These TPEOs provide outstanding residual fuel compatibility and excellent engine cleanliness, especially in crankcase, camshaft areas, ring belt and piston under crowns operating under severe conditions.
Product Description & Specifications
Features & Benefits
- Excellent oxidation & thermal stability reduces deposits formation in piston under crown and ring belt areas.
- Outstanding protection against ring and liner wear.
- Excellent protection from rust and corrosion even in presence of water.
- Excellent oil filtration and centrifuging capabilities.
- High detergency & low dispersancy capabilities, ensures engine cleanliness and releases contaminants & water readily in centrifugal separators.
- Very hig TBN reserves & retention, gives rapid neutralization of strong acidic combustion products and provides long term protection against corrosive wear of ferrous & non-ferrous metals.
Specifications
Zeal Marine XTPE 50 meets or exceeds following International and Builder specifications:
- API CF
Application
- Suitable for lubricating Medium-speed Trunk piston engines in industrial or marine propulsion and auxiliary engines on deep sea vessels, burning on residual fuel oils with sulfur levels of 1.5% to 3.5%.
- Suitable for use in the latest model medium speed diesel engines, facilitating low crankcase oil consumption and useful in engines operating with low cylinder liner temperatures.
- Marine engine reduction gears, stern tubes & bearings and certain other ship-board applications
Typical Characteristics
| Zeal Marine | Test Method | Units | 5030 | 5040 | 5050 |
|---|---|---|---|---|---|
| SAE Grade | — | — | 30 | 40 | 50 |
| Density @ 15 0C | ASTM D 4052 | gm/cc | 0.892 | 0.900 | 0.904 |
| Viscosity @ 100 0C | ASTM D 445 | cSt | 11.6 | 14.6 | 19.2 |
| Viscosity @ 40 0C | ASTM D 445 | cSt | 103 | 145 | 218 |
| Viscosity Index | ASTM D 2270 | – | 100 | 99 | 99 |
| Pour Point | ASTM D 97 | °C | -9 | -9 | -6 |
| Flash Point (COC) | ASTM D 92 | °C | 245 | 268 | 276 |
| Total Base Number | ASTM D 2896 | mg KOH/g | 50 | 50 | 50 |
| Sulphated Ash | ASTM D 874 | wt% | 6.4 | 6.4 | 6.4 |
The above figures are typical of blends with normal production tolerance and do not constitute a specification.
