1. Use the appropriate grade of lubricant. The gasoline engine should be based on the system and the use of additional conditions and the use of equipment SD-SF-class gasoline engine oil; diesel engine will be based on mechanical load selection CB-CD-class diesel engine oil, the selection criteria to not less than the manufacturer requirements The Hangzhou big friends auto parts
2. Regular replacement of oil and filter. Any quality grade of lubricating oil in the course of the use of oil will change, in order to avoid the occurrence of failure should be combined with the use of regular oil change conditions, and make moderate oil (generally to the upper limit of the oil scale is better).
3. Keep the crankcase well ventilated. Most petrol engines are now equipped with PCV valves (crankcase forced ventilation), but the pollutants in the channeling gas will be deposited around the PCV valve, the valve may be blocked. Therefore, the pollutants surrounding the PCV valve must be periodically removed.
4. Regularly clean the crankcase. 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 produced by the wear of the parts to form Sludge. Therefore, the crankcase should be cleaned regularly to keep the inside of the engine clean.