Diesel engines are smaller than gasoline engines in size, lighter in engine weight, and have good operability. The diesel product oil used is not limited, and it can be used according to the engine condition. After the engine is running, the sound and vibration are small, and the exhaust emission specifications are lower than those of diesel engines.

　　Diesel-engine cars often go up on the highway. When the car is running for a long time, the engine temperature and working pressure are relatively high, causing more incense ash and carbon deposits in the cylinder, and the engine oil is also prone to air oxidation to cause collagen fibers. Therefore, the diesel engine oil regulations are excellent The high temperature and quietness.

　　The engine compression ratio refers to the ratio of the larger volume and the smallest volume of the steam generated in the cylinder when the piston rod moves in the cylinder. When the piston rod is at a low point, the volume of gas in the cylinder is larger, and when the piston rod is at a high point, the volume of gas in the cylinder is the least.

Note: The article comes from the Internet, if there is any infringement, please contact me to delete it!