RUMANZA Railroad Engine Oil BZ-97:
Rumanza Railroad Engine Oil BZ-97 is a robust, medium-speed diesel engine crankcase oil with high dispersant properties, effectively suspending combustion and oxidation byproducts. Engineered to maintain cleanliness in critical areas such as the right belt area, valve deck, crankcase, and piston under crowns.
Application:
Ideal for medium-speed two-cycle and four-cycle diesel engines, including ALCO, Electromotive Diesel, Fairbanks Morse, and General Electric, where a zinc-free engine oil meeting API CF-2 specifications is required.
Properties:
Specification:
Meets API CF-2 specifications, ensuring optimal performance and protection for medium-speed diesel engines in railroad applications.
Typical Properties:
| PARAMETERS | TEST METHOD | UNIT | BZ-97 | |
| SAE Grade | 40 | 20W-40 | ||
| Kinematic Viscosity @ 104°F /40°C | ASTM D-7042 | cSt | 170 | 125 |
| Kinematic Viscosity @ 212°F /100°C | ASTM D-7042 | cSt | 15 | 15.3 |
| Viscosity Index | ASTM D-2270 | – | 90 | 127 |
| SP. Gravity @15°C/ 60°F | ASTM D-4052 | g/cm3 | 0.902 | 0.890 |
| Flash Point (min) | ASTM D-92 | °C | 250 | 238 |
| Pour Point (max) | ASTM D-97 | °C | -15 | -24 |
| TBN | ASTM D-2896 | Mg KOH/g | 13 | 13 |
| CCS, (°C) | ASTM D-5293 | m.Pa.S | N/A | 9100 (-15) |