Is it okay to use cleaning agent for oil nozzle?

Nozzle cleaner is fine. Usage of nozzle cleaner: 1. First, remove several nozzles, and then insert two threads into the threaded end of the injector one by one. 2. Take a bottle of cleaning agent and connect it to the oil inlet of the injector with a heel tube. Then connect the two wires to the battery, and remove a positive electrode and a negative electrode air inlet pipe. 3. Remove all the sensors on it, spray the air bubbles with water from the engine head, rinse them with a high-pressure gun, and then blow them clean with an air gun.