Fubex DENZ 15W-40 API: CH-4 Diesel Engine Oil

The Denz 15W 40 CH-4 is a one of a kind diesel engine oil of a universal nature. Universal because it applies to both 4 stroke gasoline as well as diesel engines from 1989 to 1994. This engine oil exhibits great oxidation resistance and high lubricity in addition to its detergent and dispersant properties and it’s ability to neutralize acid.






Ensures engine cleanliness

Great oxidation resistance

Acid neutralization

High lubricity

Wear protection.


The Denz Ch-4 15W 40 diesel engine oil has a vast application field. Applicable to both transport and construction, the oil can apply to mixed fleets (trucks and cars).  Gasoline engines of any type and turbocharged (or naturally aspirated) diesel engines are also within the engine oil’s scope of application.

API performance Level

MIL L-2104 E MAN 271
MIL L-46752 D MB 227.1
ALLISON C4 level VOLVO VDS level


Parameters Test Methods Unit Result
Density at 15 ASTM D4052 g/ml 0.881
Kinematic Viscosity at 40 ASTM D445 mm²/s 99.7
Kinematic Viscosity at 100 ASTM D445 mm²/s 13.8
Pour Point ASTM D6892 -36
Flash Point ASTM D92 230
Viscosity Index ASTM D2270 140
B.N (HClO4 Method) ASTM D2896 mg KOH/g 7.0
Sulfated Ash ASTM D874 Mass % 0.99
CCS Viscosity at -20 ASTM D5293 mPa.s 6500

Denz 15W 40 engine oil is used to lubricate the engine and reduce friction in it’s moving parts. It offers great oxidation protection, ensures engine cleanliness and neutralizes acid effectively. In addition it exhibits wear protection, soot control and deposit prevention.

The Denz 15W 40 Ch-4  diesel engine oil is suitable for nearly all vehicles. It applies to gasoline engines of all types as well as turbocharged or naturally aspirated diesel engine. However, still it may not 100% apply to all vehicle types. Make sure to check your vehicle manual to see if it is right for you.

The Oil change interval in case of any oil, like the Denz 15W 40 Ch-4  synthetic diesel engine oil , depends on numerous factors, including the type of engine, the load and the operating conditions. Consult your vehicle manual for details.

Yes indeed, Denz 15W 40 CH-4 synthetic diesel engine oil is suitable for both gasoline and diesel engines. It can be used in all types of gasoline engines as well as turbocharged or naturally aspirated diesel engines.

Denz 15W 40 CH-4 diesel engine oil is recommended for temperatures above 4°F. 

For temperatures below 4°F, consider using an engine oil with a lower ‘W’ number like 10W 40 or 15W 40.

Denz 10W-40 diesel engine oil might be suitable for older vehicles. However, it is crucial to consult the manufacturer’s manual before choosing an engine oil for your particular vehicle.

As compared to other engine oils, Denz 15W 40 CH-4 provides better wear protection, soot control and deposit prevention. It promotes engine cleanness and ensures smooth functioning of the engine.

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