The importance of car engines for cars is clear to the riders. A good engine can make your car more powerful. Chery's car engine is also a very good engine in China. It has been loved by the riders since its launch. The following small series will be arranged for the riders to discuss the small common sense of Chery's engine maintenance. The thousands of kilometers at the beginning of the new car is called the running-in period. At this stage, the fine protrusions on the parts will be worn away, so that the matching clearance of each moving part is tighter and the movement is smoother. The selection of oil during this period is even more important. In the running-in period, the oil with a viscosity grade of 15W/40 or 40 is generally used for running-in. After the overhaul or over-tightening of the components of the new car or engine, it is necessary to perform the running-in adjustment during the running-in period. For example, if the oil with a larger viscosity is used, it is difficult to form a lubricating oil film on the surface of the friction pair where the clearance is not very good. The formation of dry friction causes excessive wear and even mechanical failures such as burning of tiles and holding shafts. The oil with less viscosity can achieve better cleaning and cooling due to better fluidity. If you use a car in the city, because it is often traffic jam, it is a loss-type driving, it is recommended to shorten the mileage of oil change. Ultrasonic Nonwoven Bag Making Machine Ultrasonic High Speed Bag Making Machine,Ultrasonic Bag Making Machine ,Non-woven Wave Bag Making Machine Changzhou shanglai automation equipment co., ltd , https://www.slautomate.com
How to choose oil
According to experts, the owner must know the temperature environment used by the vehicle when selecting the oil, and then purchase the oil according to the oil level and viscosity requirements required by the vehicle manual. When purchasing, carefully check the grade and viscosity mark on the outer packaging of the oil. Oil that meets the minimum requirements and above. For example, in the Sichuan area, oils that meet the multi-grade viscosity standard SAE15W-40 can be used under normal conditions throughout the year. The Chongqing area is hotter in summer, and the oil with a viscosity of 50 is selected.
The vehicle should be routinely maintained for every certain number of kilometers traveled, and the oil and three filters should be replaced. However, each time the oil change is in a barrel, there will be a slight surplus after the oil change. Don't forget to take away the leftover oil and spare it later. In this way, after one or two months, it is found that the liquid level of the oil and liquid must be replenished. The owner can also use several times to maintain the accumulated oil to “snap†the engine before changing the oil, so that the oil change is more thorough.
1. Use a lubricant of the appropriate quality grade. For gasoline engines, SD-SF grade gasoline engine oil should be selected according to the additional equipment and operating conditions of the intake and exhaust system; for diesel engines, CB-CD grade diesel engine oil should be selected according to the mechanical load. The selection criteria are not lower than the manufacturer's requirements. .
2. Regularly change the oil and filter. The oil quality of any quality grade of lubricating oil will change during use. In order to avoid the occurrence of faults, oil should be changed regularly according to the conditions of use, and the oil quantity should be moderate.
3. Keep the crankcase well ventilated. Most gasoline engines are now equipped with PCV valves, but contaminants in the helium gas can deposit around the PCV valve, possibly blocking the valve. Therefore, the contaminants around the PCV valve must be removed regularly.
4. Clean the crankcase regularly. During the operation of the engine, the high-pressure unburned gas, acid, moisture, sulfur and nitrogen oxides in the combustion chamber enter the crankcase through the gap between the piston ring and the cylinder wall, and are mixed with the metal powder generated by the wear of the parts to form Sludge. Therefore, the crankcase should be cleaned regularly to keep the inside of the engine clean.
5. Regularly clean the fuel system to control the formation of carbon deposits, which will keep the engine in a state.
6. Rusty and fouling of the engine water tank is the most common problem. Rust and scale can limit the flow in the cooling system of the coolant, reducing heat dissipation, causing the engine to overheat and even cause engine damage. Therefore, the water tank should be cleaned regularly to remove rust and scale. 
The above is a small series for everyone to organize about the maintenance of the car engine, the car engine is an important part of a car, he is the car's power system, reasonable maintenance can extend the life of the car, but also reduce the owner's love The economic investment of the car.
Chery car engine maintenance tips