First of all, the oil added to the vehicle will be consumed more or less, but it is an obvious and insignificant problem. Generally speaking, it is normal to consume 1 liter of oil every 5,000 kilometers. Whether the following situations occur.
The inside of the exhaust pipe is very dark
Wipe the inner wall of the exhaust pipe first, and then wipe it again after a week. Indicates that the vehicle is burning oil.
Blue smoke when the car starts cold in the morning
Pay attention to the outlet of the exhaust pipe when the car starts cold in the morning. If there is blue smoke, it means that the vehicle is burning oil. This method is best done by two people, one person starts the vehicle, and the other person is responsible for observing. Because the time of blue smoke is very short, and it will only appear after the vehicle has been left for a long time.
Blue smoke when the accelerator is large
Blue smoke occurs when the vehicle accelerates rapidly or when the accelerator is slammed in place, but there is basically no blue smoke when idling. This situation shows that the vehicle is burning oil, and it is already serious, and it should be repaired as soon as possible.
Blue smoke from the oil injection port
If the vehicle starts to emit blue smoke from the oil injection port in addition to the exhaust port, it means that the symptom has reached the middle and late stages The situation of burning oil is very serious, and you need to seek medical attention as soon as possible to avoid more damage.
The poor sealing performance of the cylinder is the main reason for burning oil. The main reasons are that the matching gap between the piston and the cylinder wall is too large, the installation of the piston ring is improper or the sealing performance is deteriorated, and the oil on the cylinder wall enters the combustion chamber, causing the phenomenon of oil burning.
Choose oil of good quality as much as possible. For old vehicles, oil with a slightly larger viscosity can be appropriately used to increase the sealing between the piston and the cylinder wall. After using mineral oil for a long time, use fully synthetic oil. It is also prone to poor sealing. Frequent checking of the oil dipstick, regular replacement of oil and oil filter, replacement of genuine oil filter spare parts, and selection of original oil can effectively avoid the phenomenon of oil burning.