What type of engine oil is used for the first car maintenance?
2 Answers
For the first car maintenance, 5w40 fully synthetic engine oil is used. The functions of engine oil are: to circulate carbon deposits, sludge, and worn metal particles from engine components back to the oil tank, and to flush away dirt generated on the working surfaces of parts through the flow of the lubricating oil. The items included in the first car maintenance are: 1. Replacing the engine oil, oil filter, and cleaning the air filter, checking whether the generator belt and wiper blades are damaged; 2. Checking whether the levels of various fluids are normal; 3. Checking whether the tire pressure is normal and whether there is any tire wear, bulging, or damage; 4. Inspecting the car chassis, including whether there are any scratches on the brake pads, brake discs, connecting rods, ball joints, or CV joints; 5. Verifying whether all switches and lights in the car are functioning properly. Notes for car maintenance include: 1. Making an appointment in advance; 2. Recording any faults or questions encountered while driving and informing the staff during the maintenance registration.
When I first got my car serviced, I specifically asked the maintenance technician. They said that since the engine of a new car is still quite delicate, it's best to use the manufacturer-recommended original oil as required. This is because each car model is designed differently, and the viscosity grade of the original oil perfectly matches the engine, avoiding potential warranty issues later on. For that service, I used semi-synthetic 5W-30 oil. The technician mentioned that the key focus of the first service is to clean out metal debris from the break-in period, so there's no need to use fully synthetic oil. They also advised watching them open a new oil container during maintenance to prevent any substitution with inferior products. After driving 3,000 kilometers, the engine noise did indeed become quieter. Regularly changing the oil can genuinely extend the engine's lifespan.
