The key difference between CF4 and CH4 engine oil is that CF4 engine oil has a low oxidation control and poor dispersancy, whereas CH4 engine oil has better oxidation control and improved dispersancy.
Engine oil is a type of oil that can lubricate the various parts of an engine and is important in reducing and minimizing unnecessary loss of power. Moreover, a well-lubricated engine is able to burn fuel more effectively and, thus, perform better.
CONTENTS
1. Overview and Key Difference
2. What is CF4 Engine Oil
3. What is CH4 Engine Oil
4. CF4 vs CH4 Engine Oil in Tabular Form
5. Summary – CF4 vs CH4 Engine Oil
What is CF4 Engine Oil?
CF4 engine oil is a high-performance, heavy-duty engine oil that provides proven protection to diesel engines that operate in severe on and off-highway service applications. This engine oil type is primarily recommended for use in Tata Motors Diesel Commercial Vehicles.
The most important features of CF4 engine oil are thermal and oxidation stability, excellent detergency and disparency, and stay-in-grade shear stability. There are several advantages of using CF4 engine oil: the ability to control sludge build-up and deposits, maintaining cleaner engines and longer engine life, and helping in reducing oil consumption and wear.
The SAE grade of CF4 engine oil can be given as 15W-40. The kinematic viscosity of motor oil at 40 degrees Celsius is usually 105 cSt, while it is 14.4 cSt at 100 degrees Celsius. Its viscosity index can be given as 140, while the sulfated ash content is 1.1 wt%. The pour point is given as -30 degrees Celsius while the flash point is given as 220 degrees Celsius. Moreover, the density of CF4 engine oil is 0.876 kg/l. In general, this engine oil type is not expected to produce adverse effects on health.
What is CH4 Engine Oil?
CH4 engine oil is another high-performance diesel engine oil that can provide proven protection for diesel engines operating in severe conditions for both on and off-highway applications. The technology used in the oil’s performance makes it suitable for both modern diesel engines as well as older models.
The most important features of CH4 engine oils include thermal and oxidation stability, TBN reserve, stay-in-grade shear stability, excellent detergency/dispersancy, and component compatibility. There are some advantages and potential benefits of using CH4 engine oils: its ability to control sludge build-up and deposits, deposit controlling, reducing oil consumption and increase wear protection, maintain cleaner engines and longer engine life, and longer gasket and seal life as well.
The SAE grade of CH4 engine oil is 15W-40. The kinematic viscosity of this engine oil is 103.7 cSt at 40 degrees Celsius and 14.4 cSt at 100 degrees Celsius. Moreover, the viscosity index can be given as 142, while sulfated ash content is 1.3 w%. The pour point of this engine oil is -33 degrees Celsius, while the flash point is 234 degrees Celsius. The density can be given as 0.86 kf/l.
What is the Difference Between CF4 and CH4 Engine Oil?
There are different types, grades, and names of engine oils, such as CF4 and CH4 engine oils. The key difference between CF4 and CH4 engine oil is that CF4 engine oil has a low oxidation control and poor dispersancy, whereas CH4 engine oil is a better oxidation control oil and improved dispersancy.
The following table summarizes the difference between CF4 and CH4 engine oil.
Summary – CF4 vs CH4 Engine Oil
CF4 and CH4 engine oil are two types of engine oils that are commonly used. The key difference between CF4 and CH4 engine oil is that CF4 engine oil has a low oxidation control and poor dispersancy, whereas CH4 engine oil is a better oxidation control oil and improved dispersancy.
Reference:
1. “Engine Oil.” Mobil Delvac TM Genuine CF-4 Oil 15W-40.
Image Courtesy:
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