Is synthetic oil better for diesel engines?

When we select the appropriate type, according to the types of oil available for diesel engines, a question arises: Is synthetic oil more suitable for diesel engines? We will analyze according to the characteristics and performance of diesel engines.

 The benefits of using synthetic oil in diesel engines

 Reasons why synthetic oil is used in diesel engines

 Characteristics and performance of synthetic motor oil

The benefits of using synthetic oil in diesel engines

Synthetic engine oil is of better quality, and when used in diesel engines, it will have obvious performance in the following aspects: cold start is smoother, especially in the northeast region; fuel-saving; oil change interval is longer, equivalent to 1.5 times or more of ordinary lubricating oil Long; prolong the service life of the engine and reduce the maintenance rate; due to the superior detergency of synthetic engine oil, the diesel engine cylinder block is cleaner.

Reasons why synthetic oil is used in diesel engines

Diesel engines have large matching clearances everywhere, and the knocking of diesel engines is relatively large, so the viscosity of diesel is relatively high, and the oil film is relatively thick. Generally speaking, the viscosity of diesel engine oil with the same viscosity grade is higher than that of gasoline engine oil.

On the premise of ensuring the reliable lubrication of diesel engines, low-viscosity oil is selected to reduce friction and facilitate the start of diesel engines. The choice of synthetic engine oil should be based on the ambient temperature of the diesel engine. When the diesel engine is running at the lowest ambient temperature, the selected engine oil should ensure good fluidity. When operating at the highest ambient temperature, ensure proper kinematic viscosity.

When choosing the quality grade of synthetic engine oil, you must follow the principle of “higher than lower”. High-quality synthetic engine oil can be used on diesel engines with lower requirements, but it is not economical to degrade it too much. Low-quality synthetic engine oil is used in diesel engines with high-quality requirements, otherwise， it will cause wear and damage to the diesel engine during dry periods.

Characteristics and performance of synthetic motor oil

Synthetic motor oils can be used at a wider temperature and have a longer service life; the same oil film requirements can be achieved with lower viscosity for synthetic motor oils, while semi-synthetic oils need to have a stronger viscosity than synthetic oils to achieve this requirement. In other words, in the same working environment, synthetic engine oil with lower viscosity can achieve the purpose of protecting the engine. The viscosity of the oil indicates how thin the oil is and how fast it flows. It is the resistance generated by the internal relative movement of the oil after being subjected to an external force, that is, the characterization of the internal friction of the oil, and strictly speaking, it is the friction coefficient of the internal friction.

About Mainwe Company

Our company's products are widely used in transportation, non-transportation industries ，and engineering equipment, focusing on researching diesel engines for ten years, and are China's leading distributor and supplier of engines and parts. If you use your needs and wishes in this regard, we are happy to provide you with services and quality products. We serve more industries and we are looking forward to your choices and needs. Thank you for your trust.