It is more appropriate to change oil to gas for several turns.

Changing from oil to gas generally needs to be adjusted according to parameters, and there is no fixed value. You can try to adjust the adjusting nut in the middle of the hose connected between the pressure reducer and the throttle valve to the lowest level, then zoom in for 3 times, then hit the car and listen to the engine sound to judge the power. If you can't judge, just listen to the sound of burning oil, which is basically the same as the sound of burning oil. Finally, adjust the idle screw and control the idle speed until the idle speed is stable.

Precautions: During the maintenance process of the automobile modified with natural gas, the tightness of the inflation valve, pressure reducer and pipe clamp should be checked. If it is found that it is loose, the clip is lost and doesn't work, it should be handled in time. When maintaining the vehicle, use a torque wrench to measure and check whether the installation and fastening of the cylinder meet the requirements.

Remove the sludge on the surface of steel cylinder at any time, so as not to affect the technical performance of steel cylinder valves and safety explosion-proof valves. Only after venting the gas in the system and closing all valves of the gas cylinders can the gas device be maintained. Always keep the modified natural gas system and air filter element clean and complete. In accordance with the relevant regulations and requirements, carefully fill in and save the relevant technical data of compressed natural gas vehicles.

Under normal circumstances, there is generally not much to be adjusted when a new car is converted into natural gas. But the old car is different, and all the working conditions are not very good. At this time, the intake volume of CNG and idle air should be changed according to the situation.