SBK MARINE TRUNK PISTON ENGINE OIL (TPEO)
SBK Marine Trunk Piston Engine Oil (TPEO) is a premium performance marine diesel engine lubricant specially developed for medium-speed trunk piston engines operating on distillate and residual fuels.

SBK MARINE TRUNK PISTON ENGINE OIL (TPEO)
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SBK MARINE TRUNK PISTON ENGINE OIL (TPEO)
SBK Marine Trunk Piston Engine Oil (TPEO) is a premium performance marine diesel engine lubricant specially developed for medium-speed trunk piston engines operating on distillate and residual fuels. Formulated with high-quality base oils and advanced detergent-dispersant additive technology, SBK TPEO provides excellent piston cleanliness, oxidation stability, wear protection, and resistance against sludge and deposit formation under severe marine operating conditions. SBK TPEO is designed to deliver reliable lubrication performance in marine propulsion engines, auxiliary engines, and power generation units operating in coastal, offshore, and deep-sea applications.
Performance, Features & Benefits
- Excellent piston cleanliness and deposit control
- High resistance to oxidation and thermal degradation
- Superior anti-wear protection for engine components
- Effective neutralization of acidic combustion by-products
- Excellent detergency and sludge control
- Enhanced engine reliability and longer oil service life
- Good water separation characteristics
- Strong corrosion and rust protection
Main Applications
- Medium-speed marine trunk piston diesel engines
- Auxiliary marine engines
- Marine power generation units
- Coastal and deep-sea vessels
- Engines operating on low sulfur and residual fuels
- Marine reduction gears where engine manufacturer permits
Specifications & Recommendations
- API CF
- Medium-speed marine diesel engines & auxiliary engines
- Marine power generation systems
- Engines operating on distillate and residual fuels
- MAN, Energy Solutions | Wartsila Medium-Speed Engines
- Caterpillar Marine Engines | Daihatsu Diesel Engines
- Yanmar Marine Engines | Bergen Engines | MAK Marine Engines
Product Specifications
| TEST PARAMETER | TEST METHOD | TYPICAL VALUE | |||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| (Grade | - | SAE 30 BN 12 | SAE 30 BN 15 | SAE 30 BN 20 | SAE 30 BN 30 | SAE 30 BN 40 | SAE 30 BN 50 | SAE 40 BN 12 | SAE 40 BN 15 | SAE 40 BN 20 | SAE 40 BN 30 | SAE 40 BN 40 | SAE 40 BN 50) |
| Appearance | Visual | C&B | C&B | C&B | C&B | C&B | C&B | C&B | C&B | C&B | C&B | C&B | C&B |
| KV @ 40°C | ASTM D445 | TBR | TBR | TBR | TBR | TBR | TBR | TBR | TBR | TBR | TBR | TBR | TBR |
| KV @ 100°C | ASTM D445 | 10.5 | 10.5 | 10.5 | 10.5 | 10.5 | 10.5 | 14.5 | 14.5 | 14.5 | 14.5 | 14.5 | 14.5 |
| Viscosity Index | ASTM D2270 | 290 | 290 | 290 | 290 | 290 | 290 | 290 | 290 | 290 | 290 | 290 | 290 |
| Density @ 15°C | ASTM D4052 | 0.8876 | 0.8892 | 0.8920 | 0.8972 | 0.9025 | 0.9076 | 0.8907 | 0.8923 | 0.8923 | 0.8998 | 0.9053 | 0.9107 |
| Flash Point (°C) | ASTM D92 | ≥ 200 | ≥ 200 | ≥ 200 | ≥ 200 | ≥ 200 | ≥ 200 | ≥ 200 | ≥ 200 | ≥ 200 | ≥ 200 | ≥ 200 | ≥ 200 |
| Pour Point (°C) | ASTM D97 | -9 | -9 | -9 | -9 | -9 | -9 | -9 | -9 | -9 | -9 | -9 | -9 |
| TBN (mg KOH/g) | ASTM D2896 | 12 | 15 | 20 | 30 | 40 | 50 | 12 | 15 | 20 | 30 | 40 | 50 |
