1. INCREASE THE COOLING WATER TEMPERATURE OF THE DIESEL ENGINE. LOW COOLING WATER TEMPERATURE IN WATER-COOLED DIESEL ENGINES CAN CAUSE INCOMPLETE COMBUSTION OF DIESEL, HIGH OIL VISCOSITY, INCREASED OPERATING RESISTANCE, AND INCREASED FUEL CONSUMPTION. THEREFORE, IT IS NECESSARY TO INCREASE THE TEMPERATURE OF THE DIESEL ENGINE COOLING WATER.2. MAINTAIN THE FRONT ANGLE OF ****** FUEL SUPPLY. AFTER USING THE DIESEL ENGINE FOR A PERIOD OF TIME, DUE TO THE WEAR OF THE PLUNGER COUPLING AND THE FUEL INJECTION PUMP TRANSMISSION COMPONENTS, THE FUEL SUPPLY ADVANCE ANGLE WILL DECREASE, CAUSING THE FUEL SUPPLY TIME TO BE TOO LATE AND FUEL CONSUMPTION TO INCREASE. THEREFORE, IT IS NECESSARY TO ENSURE THAT THE FUEL SUPPLY ANGLE IS AT THE ****** ANGLE.3. ENSURE THAT THE MACHINE DOES NOT LEAK OIL. DIESEL ENGINE FUEL PIPES OFTEN HAVE LEAKS DUE TO UNEVEN JOINT SURFACES, DEFORMED OR DAMAGED GASKETS. THE SOLUTION IS: ① APPLY VALVE PAINT TO THE GASKET AND GRIND IT FLAT ON A GLASS PLATE TO CORRECT THE OIL PIPE JOINT. ② IF THERE IS NO OIL RETURN DEVICE, A DIESEL RECOVERY DEVICE SHOULD BE INSTALLED. A PLASTIC PIPE CAN BE USED TO CONNECT THE OIL RETURN PIPE ON THE NOZZLE TO THE HOLLOW SCREW OF THE FUEL TANK, SO THAT THE RETURN OIL FLOWS INTO THE TANK.4. PURIFY THE OIL BEFORE USE. MORE THAN HALF OF DIESEL ENGINE FAILURES COME FROM THE FUEL SUPPLY SYSTEM. THE SOLUTION IS: ① PUT THE PURCHASED DIESEL ASIDE FOR 2-4 DAYS AND THEN USE THE UPPER LAYER OF FUEL TO PRECIPITATE 98% OF IMPURITIES. ② IF YOU BUY AND USE IT NOW, YOU CAN PLACE TWO LAYERS OF SILK CLOTH OR TOILET PAPER AT THE FUEL TANK FILLING FILTER TO FILTER OUT IMPURITIES.5. CHANGE THE PRACTICE OF "BIG HORSES PULLING SMALL CARS". AGRICULTURAL DIESEL ENGINES OFTEN HAVE THE PHENOMENON OF "LARGE MACHINES WITH SMALL WATER PUMPS", WHICH IS A WASTEFUL PRACTICE OF ENERGY. IMPROVEMENT METHOD: APPROPRIATELY INCREASE THE BELT PULLEY OF THE DIESEL ENGINE, INCREASE THE WATER PUMP SPEED WHILE THE DIESEL ENGINE IS RUNNING AT A REDUCED SPEED, SO AS TO INCREASE THE FLOW RATE, HEAD, AND SHAFT POWER, AND ACHIEVE ENERGY-SAVING GOALS.6. ADJUST THE INJECTION PRESSURE OF THE FUEL INJECTOR. WHEN THE INJECTION PRESSURE OF THE DIESEL ENGINE INJECTOR IS TOO LOW, IT CAN CAUSE POOR DIESEL ATOMIZATION, INCOMPLETE COMBUSTION, AND INCREASED FUEL CONSUMPTION. IT IS NECESSARY TO ENSURE THAT THE INJECTION PRESSURE MEETS THE STANDARDS.