What is the method to distinguish between oil grades?
1 Answers
The method to distinguish between oil grades is to look at the viscosity index differences. The method for changing the oil is: 1. Lift the car, remove the protective plate, and place a container under the oil drain screw; 2. Unscrew the oil drain screw, use an air gun to blow for two minutes at the oil filler port, tighten the oil drain screw after draining, and wipe it with a tissue to check for leaks; 3. Reinstall the protective plate and lower the car, then add oil through the filler port. Precautions for changing oil: 1. Perform the operation when the engine is warm to ensure the old oil is drained as completely as possible; 2. Add oil and ensure the amount is appropriate; 3. After adding oil, start the engine and check for any leaks. Run the engine for 3 minutes to confirm the oil level is at the normal mark.