How to change the engine oil
1. Loosen the oil drain bolt under the oil pan to drain off the oil, loosen and remove the oil grid, and then install a new oil grid. Add new oil to the oil grid and tighten the oil drain bolt;
2. Then pour new oil from the oil filler port, check that the oil on the oil gauge is close to the upper grid line, and finally cover the oil filler port;
3. Twist the nut under the oil pan to open the oil, remove the oil filter element, wait until the oil is empty, wipe the screw of the oil pan, there is a magnet on it, wipe off the iron filings on the upper side with a rag and toilet paper, and tighten the oil pan. Screw the oil filter element and fill the oil. Install the oil filler port on the body and fill it with oil. Check the ruler, about a barrel of more than a few points.