How does the diesel engine run-in, use, and match the power (1). Generally, when a new or overhauled diesel generator must be run-in for 60 hours before it is officially used, it can be put into full load. To improve the working conditions of each moving parts of the diesel engine, improve the operating reliability and service life of the diesel engine. (2) The run-in plan should be considered depending on the use of the diesel engine and the towing method. In principle, as the running-in time increases, the speed and load of the diesel engine are gradually increased in stages. During the entire running-in period, the load should be 50~80% of the 12-h calibration power, and the speed should not be greater than 80% of the calibration speed. However, the operation time should not be too long at the beginning of the running-in or under too small loads. Note: Whenever the cylinder liner, piston, piston ring, connecting rod bearing and crook are replaced, short-term running-in should be carried out according to the above-mentioned running-in conditions. diesel fuel