What is the reason for car oil leakage in winter? How to solve the problem of car oil leakage in winter

Motor oil is a lubricant used in the engine. It reduces friction, prevents leakage, rust and corrosion. It is called the blood of the car and is a part that needs special attention in car maintenance. If some cars are driven for a long time, they will start to leak motor oil in winter. What is the reason?

What causes car oil leakage in winter?

New cars that have just been purchased generally do not have oil leakage, which is basically the case with cars that have been used for a few years. Family cars generally remain in good condition within three years, and those that run a few thousand or even less per year. Oil leakage usually occurs in old cars that are in poor condition and are often repaired, and do not leak in the summer but leak in the winter.

First, the oil seal is often used for several years. Due to the poor quality of rubber products, it ages. In winter, due to thermal expansion and contraction, it cannot be consistent with the engine body, resulting in oil leakage.

Secondly, some cars have undergone irregular after-sales maintenance, and the oil seals and valve cover gaskets were not cleaned and sealed properly when installed. In winter, as the temperature drops sharply after parking, the engine oil will seep out from the unevenly contracted areas.

Third, the valve cover gasket or oil seal is damaged, which may be caused by aging, poor crankcase ventilation, and excessive exhaust gas pressure in the cylinder.

How to solve the problem of car oil leakage in winter

Cars leak oil in winter because the weather is cold and the oil is viscous. The resistance to oil flow in the oil channels and oil pipes increases, and the oil pressure increases. Oil seals that have poor sealing and loose contact are prone to oil leakage. In addition, the engine speed is too high during improper engine preheating, which also causes oil leakage from a certain assembly of the car.

When starting the engine to preheat in winter, it should run at idle speed for 2 to 3 minutes. When the engine temperature is above 40 degrees, you can start the engine. Do not operate too hastily, start the engine and step on the accelerator pedal hard, which will cause the engine to heat up quickly, thereby accelerating engine wear and shortening the engine's service life. This practice should be strictly prohibited.

Can car oil be used on motorcycles?

You can use it, but use it sparingly. If you have motorcycle oil, use it first.

1. The motorcycle speed is relatively high, at least above 4,000, and requires higher viscosity oil to protect and form a thicker oil film.

2. Motorcycles have very little water. Except for imported cars, the cylinder temperature is higher than that of cars, so high shear capacity oil is required.

3. The viscosity of motorcycle oil is almost always 10-40 20-50 10-50 10-60. It is rare to see a viscosity of 5-30 5-40.

4. Car engine oil and gear oil are separate. Motorcycles have integrated gears and require a higher viscosity to supply lubricating gear oil.