Fubex ZEXER 15W-40 CI-4 Diesel Engine Oil

The “15W 40” in the name of the  ZEXER 15W 40 Cl-4 diesel engine oil refers to the viscosity rating of the oil. This rating shows that the oil has a good viscosity at cold temperatures and it thickens as the temperature increases. 

The Cl-4 specification for any diesel engine oil, including the ZEXER 15W 40 Cl-4 means that the oil was tested for a wide range of lubricant qualities such as Emission control, wear protection, soot handling, oxidation and thermal stability and compatibility with diesel engines. Therefore any Engine oil that meets the  Cl-4 specification qualifies in all these parameters at once.

The Cl-4 specification for any diesel engine oil, including the ZEXER 15W 40 Cl-4 means that the oil was tested for a wide range of lubricant qualities such as Emission control, wear protection, soot handling, oxidation and thermal stability and compatibility with diesel engines. Therefore any Engine oil that meets the  Cl-4 specification qualifies in all these parameters at once.

Viscosity of an oil is important as it affects its ability to lubricate. An oil which is less viscous at low temperatures, can flow easily and provide adequate lubrication in very cold environments as opposed to a more viscous oil. However, an oil with a large viscosity at high temperatures such as ZEXER 15W 40 Cl-4 gasoline engine oil, can maintain a thick film between moving parts of the engine and reduce friction, which a less viscous oil may not be able to do.

The ZEXER 15W 40 Cl-4 synthetic diesel engine oil has a wide application range. It is suitable for both gasoline engines, turbo and four valve alike, as well as diesel engines for passenger cars and heavy trucks. Therefore it applies to almost all engines but not a 100%. Consult your vehicle manual to see if its right for you.

Oils rated as Cl-4, such as the ZEXER 15W 40 Cl-4 synthetic diesel engine oil , are more qualified in certain parameters as compared to previous specifications. These oils have better soot handling, emission control, wear protection and overall compatibility with different diesel engines.

Oil change interval when using the ZEXER 15W 40 Cl-4 diesel engine oil  or any oil for that matter, depends upon your type of vehicle and how much you run it. There is no universal number for this.

Yes indeed, the  ZEXER 15W 40 Cl-4 diesel engine oil does contribute to fuel economy.