What to pay attention to when changing the engine oil What should I pay attention to when changing t

Replace it regularly and choose a qualified brand. Summer oil is used in the summer and winter oil is used in the winter. You can let the oil go a little longer.

It is very important to change it regularly, although there are all-season engine oils on the market now, it is best to refer to the driver's manual to choose the engine oil, of course, you must buy the best quality brand, do not change it casually on the roadside, so as not to use inferior engine oil.

Maybe you're more targeted by saying the car model.

Lubrication and anti-friction is the rapid relative sliding between the piston and the cylinder, between the spindle and the bearing, and to prevent the parts from wearing out too quickly, it is necessary to establish an oil film between the two sliding surfaces. An oil film of sufficient thickness separates the surface of the part that is relatively sliding, thus reducing wear.

The following four points should be paid attention to when changing the engine oil:

1. Choose the right oil.

When choosing the right engine oil, you need to choose the oil grade in strict accordance with the instruction manual, if there is no same level of engine oil, you can only use a higher grade of engine oil, and never use a lower grade of engine oil instead. At the same time, it is necessary to pay attention to whether the viscosity of the engine oil meets the requirements, and do not have the idea of choosing the expensive one.

2. Oil discharge and inspection.

After the technician twists the oil pan screws or twists the oil filter to release the waste oil, it is necessary to pay attention to the oil pan screws with new screw washers and then tighten themBefore installing the new oil filter, it is necessary to carefully check whether the rubber sealing ring of the original old filter is removed with the filter, so as to avoid oil leakage when the new part is installed. In addition, the new oil filter rubber seal (the rounded edge of the filter) is applied by hand with an oil film that acts as a lubricating medium during installation and prevents the seal from being broken when the new filter is installed.

If you find that your technician has missed any of the above steps, you should know what to do.

3. Add an appropriate amount of engine oil.

When adding oil to your car, you need to add oil appropriately according to the displacement of the vehicle, and you must not add too much greedily, or add too little in order to save money. If there is too much oil, it will cause internal power loss when the engine is started, and it will cause problems with burning oil. On the other hand, if the engine oil is insufficient, the internal bearings and journals of the engine will rub due to insufficient lubrication, which will aggravate the degree of wear and tear, and in severe cases, it will cause the accident of burning the shaft.

Therefore, when adding engine oil, it should be controlled between the upper and lower engraved lines of the oil dipstick.

Fourth, check again after oil change.

When the oil is added, it is necessary to start the car, let the engine run for 3 to 5 minutes, and then turn off the engine. Re-draw the dipstick to check the oil level, and raise the vehicle to check the position of the oil pan screw or oil filter for organic oil leakage. Calculate the correct steps to change the oil.

Precautions for changing the oil:

1. Hot oil discharge, good fluidity;

2. Fill the scale to reach the scale;

3. The oil change cycle is selected according to the vehicle condition, road conditions, oil quality, driving habits, etc.;

4. The oil is selected according to the requirements of the driving environment, driving frequency and the vehicle engine itself.

Precautions when choosing an oil:

1. The selection of engine oil should be selected according to the requirements of the engine, and it is not necessary to use too high-grade engine oil on the engine with lower requirements, nor can the lower-grade engine oil be used on the engine with higher requirements; 2. Multi-grade oil should be selected as much as possible, multi-grade oil has a good protective effect on the engine due to saving, long life and high efficiency, based on the characteristics of multi-grade oil, there will be premature blackening in the process of use, and the oil pressure is smaller than that of ordinary oil, which is normal.

Oil changes should be done when the engine oil temperature is above 60°C. When changing the oil, put an oil pan under the oil drain plug in the oil pan, remove the drain plug with a wrench, and open the oil filler cap to let air into the engine so that the oil can be drained.

If a large amount of impurities are found in the oil pan, the engine lubrication system should be cleaned with light spindle oil, not gasoline or kerosene. After each oil is added, the engine should be run under no-load conditions for 3 5min to ensure that the lubrication system of the car and the part that should be supplied with oil can be sufficiently lubricated.

The selection of engine oil should pay attention to the following four points: 1. The selection of engine oil should be selected according to the requirements of the engine, and it is not necessary to use too high-grade engine oil on the engine with lower requirements, nor can the lower-grade engine oil be used on the engine with higher requirements. 2. Multi-grade oil should be selected as much as possible, because multi-grade oil has a good protective effect on the engine due to its saving, long life and high efficiency.

Based on the characteristics of multi-grade oil, premature blackening and oil pressure may be smaller than that of ordinary oil during use, which is normal. 3. The quality of some domestic brand-name engine oil is quite good, and it is much lower than that of similar imported products, so it can be used with confidence, and there is no need to blindly pursue "foreign oil". 4. If the engine is in good condition and the temperature is low in season, the oil with low viscosity should be used as much as possible to make the oil circuit smooth.

For example, in the high temperature season or under the condition of severe engine wear, the selection of high viscosity oil is conducive to the formation of oil film and reduces engine wear.

When changing the engine oil, first of all, confirm the number of the engine oil, new cars or cars with fewer kilometers, it is recommended to use 20 engine oil, and more kilometers of cars or older cars, it is recommended to use 30 or 40 engine oil. If you use semi-synthetic oil, then change it every 5,000 km or half a year, and if you use fully synthetic oil, then change it every 10,000 km or once a year. When changing the oil, be sure to change the filter at the same time.

1. Supplement engine oil in an appropriate amount, not too much, not too much.

2. The engine oil recommended by the "random manual" should be used.

3. The viscosity of the engine oil should be appropriate. Too much viscosity will lead to an increase in engine internal resistance, and too low a viscosity will lead to insufficient lubrication strength.

4. The engine oil should be selected according to the season. It is best to choose a motor oil that can be used in both winter and summer.

5. Select engine oil, and the grade should correspond. It is possible to replace the low with the high, and not the high with the low.

According to the regulations of the vehicle manufacturer, the correct selection of the quality level of the oil, and according to the specific condition of the vehicle and the ambient temperature to choose the appropriate oil viscosity level, such as the old condition, the ambient temperature is high, you need to choose the viscosity of the oil.

It is necessary to pay attention to what kind of gasoline label is used for influence. And this oil is going to have an impact on the engine.

The optimal oil height is between the upper and lower limits. The hot car inspection method is to let the engine lubricate the car engine once, and then wait 10 or 30 minutes before checking the level of the dipstick.

1.Different oils should not be mixed: if the medium and high-grade oil is replaced with ordinary oil, the original oil should be drained first and the lubrication system should be cleaned. Don't mix it up.

For example, ordinary mineral oil is changed every 5,000 kilometers or half a year, semi-synthetic engine oil is changed for 7,500 kilometers, and synthetic engine oil is changed for 10,000 kilometers. There is nothing wrong with this criterion, but it also depends on the actual road conditions.

Therefore, at no time should the engine be short of oil. However, over-adding (exceeding the size cap) can have undesirable consequences. Too much oil will increase the rotational resistance of the crankshaft, reduce the output power of the engine, and too much oil will run into the combustion chamber to participate in combustion, causing the vehicle to burn oil, emit blue smoke, and even increase fuel consumption.

It's a move that isn't worth the cost.

Four. Choosing the right oil: From the perspective of the type of engine oil, the most common ones on the market today are semi-synthetic motor oil and synthetic motor oil.

This is because the technology of automobile engines is becoming more and more advanced, and the requirements for engine oil are also getting higher and higher. Comparatively speaking, the quality of the engine oil in synthetic motor oil is higher, and it is recommended that car owners try to use it as much as possible. The synthetic steam engine oil of the present invention has good high temperature wear resistance and low temperature start-up performance, and can be used in various harsh weather conditions, which greatly prolongs the oil change interval.

When changing the oil, the oil filter should be cleaned 2 3 times, and the filter element should be replaced with a new part if it is damaged or has failed. Each time the oil is changed, it should be released while it is hot, and then diesel fuel should be added to the oil pan (more than the amount of oil used). The motion of the absolute posture idles for 2 3min, and the washing oil is released after stopping and defeating the car, and after dripping dry, new lubricating oil is added.

Changing the engine oil needs to pay attention to: 1. Choosing a good engine oil can make the car more durable and more powerful, and a good engine oil can not only protect the engine, but also reduce the number of oil changes; 2. The selection of engine oil should be selected according to the requirements of the engine, and it is not necessary to use too high-grade engine oil on the engine with lower requirements, nor can the lower-grade engine oil be used on the engine with higher requirements; 3. If the engine is in good condition and the temperature is low in season, the oil with low viscosity should be used as much as possible to make the oil path smooth; 4. For example, in the high temperature season or under the condition of serious engine wear, the selection of high viscosity engine oil is conducive to the formation of oil film and reduces engine wear; 5. The amount of oil should be slightly lower than the scale on the oil dipstick, and it should not be overfilled.