Briefly describe the steps of changing the engine oil, what are the detailed steps when changing the

When choosing the right oilIf there is no oil of the same grade, you can only use a higher grade of oil, and you must not replace it with a lower grade of oil.

After the oil filter, it is then sent to the parts that need to be lubricated, such as crankshafts and camshafts.

Rocker arm, etc., and finally the oil flows back to the oil pool, and so on, and so on, and constantly works. As far as the engine is concerned, the oil plays the functions of lubrication, cleaning, cooling, sealing, etc. Therefore, no matter what model of car owner, you must change the engine oil according to the mileage specified in the manual.

1. Open the hood and open the oil cap.

2. Find the air filter.

dismantle it, blow the air cleaner clean with the air pressure of the air pump and put it on.

3. The hoist truck (without a lift, you can only climb to the bottom) unscrew and drain the oil.

4. When the oil is finished, unscrew the oil filter.

5. Put the sealing ring when installing the oil filter.

Wipe a circle of oil to prevent the sealing ring from being squeezed and damaged, and it will not be difficult to disassemble when dismantling next time, install the oil filter, tighten the oil pan oil drain screw, and wipe the excess oil with a rag.

6. Add engine oil, don't pour it all, just a little more than 3 and a half liters.

Oil selection method. The appearance is clear, low sulfur content (less than carbon residue (less than weight), less water and sediment (less than volume), and ash content.

Less (below weight).

The characteristics of common inferior diesel in the market: turbid appearance, failure to meet the specified label, failure to meet the specified low calorific value, high sulfur content, many impurities, high moisture content, and high carbon residue.

Hello, the operation steps for changing the engine oil are as follows:

1. After the car is driven to the lift, turn off the engine, use the lift to jack the vehicle, pull up the handbrake and squeeze the front wheel with a wooden wedge;

2. Place the old oil container under the oil pan, find the oil drain bolt of the oil pan, and slowly unscrew the oil drain bolt, taking care not to touch the hot oil;

3. Move the oil container to the bottom of the oil filter, use the oil filter element wrench to loosen the filter element, and then unscrew it by hand. If the filter is still hot, remember to wear gloves;

4. Refer to the user's manual to select the appropriate oil filter element;

5. Use new oil to apply the interface gasket of the new filter element. If the filter is installed vertically, some fresh oil can be poured into the filter, which will reduce dry grinding the next engine start;

6. Pour the new engine oil into the oil pan, pay attention to the introduction of the user's manual. A funnel can be used to prevent oil from being poured on the outside of the engine.

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Precautions for changing engine oil in your car:

1. Place the old oil container under the oil pan in the lower part of the engine compartment of the vehicle. Use a special wrench to unscrew the oil filter element and take it out, the position of the oil filter element is different for different models.

2. Slowly unscrew the oil drain bolt of the oil pan to release the old engine oil. After a period of release, reinstall the drain bolts and do not overtighten the bolts to prevent damage to the oil pan.

3. After putting it clean, tighten the screws, not too tight, and then come out and pour the oil into the engine, and the filter can be screwed on. After pouring the oil, remember to check the dipstick.

4. Most of the base oils are mineral oils, and the additives include metal detergents, antioxidant and anticorrosive agents, rust removers, ashless dispersants and viscosity index improvers.

5. Selection according to regional seasonal temperature: The selection of engine oil should be based on the regional seasonal temperature, combined with the performance and technical conditions of the engine, and the appropriate oil label and viscosity grade.

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 grade 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: match the oil pan screws with a new screw washer and then tighten it; Before 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 rubbing and breaking when the new filter is installed.

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

3. Add an appropriate amount of engine oil.

When adding engine oil to your car, you need to add engine oil appropriately according to the displacement of the vehicle, and you must not be greedy to add too much, 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 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 the 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.

To change the engine oil, I bought the engine oil myself and then asked the auto repair shop to change it, which is quite cost-effective. More than 500 bought G T magic red 4L, and then went to the auto repair shop to spend hundreds of dollars to get it. The key GT is still the high-end four-class PAO base oil, the power runs 10,000 kilometers to the attenuator, and 15,000 kilometers to change, which saves the cost of changing the engine oil several times.

I think the method of buying engine oil by myself and then going to the auto repair shop to change it is quite cost-effective. I always buy my own engine oil, and then go to the auto repair shop and spend 50 yuan to get it done. It is G T Magic Red, a high-end four-class PAO base oil, and the power runs 10,000 kilometers to the attenuator, and 15,000 kilometers to change, which saves the cost of changing the engine oil several times.

Unscrew the screws first, remove the guard plate, and check for oil leakage. Then install the guard plate, place the funnel in the oil filler port, and change the oil to a new one. It is best to drain the old engine oil completely and then start the engine for testing.

Changing the oil is very troublesome, it is better to buy the oil to the auto repair shop to change, control the quality and save effort, but now there are a lot of fake oil to buy yourself and you have to buy real oil, I used a fake oil before to run up to the power is very poor more than 1000 kilometers to change, now are used G T magic red engine oil, the original imported PAO engine oil is not fake or more reliable.

In the lower part of the vehicle engine has a bottom place, there is a container with a special wrench to unscrew the oil filter element and take out the filter element, slowly unscrew the oil drain bolt of the oil pan, release the old engine oil, re-place the oil bolt, do not tighten, to prevent the oil pan from being damaged, after putting it clean, pour the oil into the engine, and the filter can be screwed on.