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:

High dispersant formula for effective byproduct suspension.
Maintains cleanliness in critical engine areas.
Specifically designed for medium-speed diesel engines.
Zinc-free composition, meeting API CF-2 requirements.

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)