When changing the engine oil during car maintenance, is it better to pump or put it away? Why?

Theoretically, it should be cleaner. Because the oil is pumped directly into the bottom of the oil pan, the oil is pumped out by using the injection and suction away to form a negative pressure, so that the oil will be pumped relatively cleanly.

In the case of gravity replacement, the oil in the oil pan is released by disassembling the screws of the oil pan after the vehicle is lifted. Whether it is clean or not has a relationship with time. If the time is very short, the oil is not very clean, but after a long time, the oil will be clean.

It's definitely pumped well. Because this can pump the oil very cleanly, so that when the new oil is added, it will not mix with the old oil, which can ensure the effect of the oil.

When changing the engine oil during car maintenance, I think it is better to put it in. Because the way you put it can be handled more cleanly.

The most important item of maintenance is to change the oil filter, whether it is a new car or an old car, it must be changed regularly. But the first guarantee is basically the worst mineral engine oil, the limit can only run 5,000 kilometers, in fact, generally two or three thousand kilometers of power is not good, when the time comes, you can't help but want to change. I changed the GT Magic Red because of the poor power of the original engine oil, and now it is changed once at 12,000 kilometers, and the power is also very good.

The basic content of maintaining the car is to change the oil filter. The oil is used to clean, lubricate, cool the engine while it is working, and seal. Over time, the oil itself will become dirty, which in turn will contaminate the engine.

In addition, the oil will come into contact with air after activation, and oxidation will occur whenever it comes into contact with the air, and the performance of the oxidized oil will be weakened, and the effect will be greatly reduced. That's why we need to change the oil regularly to ensure its effectiveness and continue to protect the engine. Different kinds of engine oil, because of different performance and different antioxidant capacity, so the replacement cycle is not the same, the replacement cycle of mineral engine oil is half a year or 5000 kilometers, the semi-synthetic engine oil is a little longer, can be replaced in 8 months or about 7500 kilometers, and the replacement cycle of fully synthetic engine oil can reach 1 year or 10,000 kilometers.

As for the machine filter, because it is used to filter the engine oil, it should also be replaced with the oil.

Of course, it's not just the oil that keeps the vehicle running, there are many other spare parts, which also need to be replaced regularly, as well as consumables. For example, in addition to the oil filter, there are also air filters and air conditioning filters on the vehicle to ensure that the air entering the engine and the cabin is clean. The spark plug ensures the ignition of the vehicle and is also a consumable product, which also has its own replacement cycle depending on the material.

In addition, although the antifreeze usually needs to be observed to see if it is reduced, even if it is added, it is also oxidized, so it must be replaced every two years.

During maintenance, in addition to the above items, the repairman will also check the vehicle, including the wear and tear of tires and brake pads. Therefore, maintenance is indeed very important for the car, only regular maintenance on time can ensure the good condition and safety of the vehicle, do not delay or do not do maintenance.

Five key points of engine maintenance: 1. Use the appropriate grade of oil to change the oil and filter element regularly (every 5000 km); 2. Maintain the air filter frequently and replace it regularly (every 20,000 kilometers); 3. Clean the fuel system regularly, and replace the fuel filter element regularly (every 30,000 kilometers); 4. Regularly (30,000 km) maintenance of the water tank cooling network; 5. Replace the spark plug regularly (40,000 kilometers or driving conditions).

The most important thing to maintain in car maintenance is to change the oil and oil filter, the most frequent thing to do in car maintenance is to wash the car, and the most frequent parts to check in car maintenance are the tire surface and air pressure, oil scale, cooling water level, and brake oil level.

It's hard to say about this, each has its own benefits, as follows:

1. The oil is released by natural gravity, so that the oil flows out naturally, which is mainly for the vehicle where the oil grid is installed at the bottom of the engine, before the oil is discharged, we need to open the oil filling port cover, unscrew the oil filter, and loosen the oil bolt, in fact, there are many masters in order to save time when doing maintenance, and the bolt is installed without waiting for the oil to be discharged;

2. How to tell if it is clean? When the outflow of oil is in the form of drops, a few drops per minute are empty and cracked, which is considered to be the complete removal of the oil. However, there are some uneven places inside the engine, and it is impossible to completely drain all the oil inside;

3. Pumping oil is sucked out by compressed air, which is mainly for vehicles with oil grid installed on the upper part of the engine, the good advantage of suction is to save time, insert the straw into the bottom of the engine from the oil dipstick, and at the same time need to unscrew the oil filter during the oil suction process, until you see that there is no oil pumped out of the oil pipe for cleaning;

4. Summary: In fact, the replacement of the engine oil is pumped clean or put clean, this is not absolute, mainly depends on your engine design, if your oil filter is installed in the upper part of the engine, the pumped oil must be cleaner than put. If the oil filter is installed at the bottom of the engine, it will definitely be cleaner than pumping.

For automobiles, engine oil is like the blood of the human body, which plays the role of lubricating and cooling the internal parts of the engine, which can extend the life of the engine. For this reason, due to the characteristics of the oil, it needs to be replaced after a certain mileage or a certain period of time. When you go to an auto repair shop to change your oil, you'll usually drain your old oil or pump it.

So which is better pumping or pumping? Which way to make it cleaner?

In fact, there is not much difference between these two types of oil draining. Both can get iron filings, sludge, and impurities from oil. If it is better to stick to whichever way, the way of pumping is undoubtedly better.

The traditional way to drain oil is to remove the engine's drain bolt and let the oil flow out automatically by gravity. However, this method is not only cumbersome and time-consuming, but also may cause damage or oil leakage to the oil pan screws every time the oil drain bolts are removed and assembled. So it is quite troublesome to put it in once and replace the screws and seals.

Moreover, the released oil is easy to flow to the ground, causing a dirty working environment.

Moreover, at present, the oil changing screws of the car are designed on the side of the oil pan, so there are some things that cannot be released at the bottom, and about 80% of the waste oil is released in this way. Of course, that doesn't mean the way the oil is drained is bad. It also has the advantage that it can flush out the insoluble carbon colloids deposited in the oil pan, and the way of pumping oil is absolutely impossible.

The way to pump oil is to pull out the oil dipstick of the engine, insert a soft suction hose into the dipstick, and then use the equipment to pump the oil out, so that there is no need to move the oil drain bolt. Because of the use of professional equipment, the efficiency is very high, saving time and effort, so that the extracted waste oil can reach about 90%.

Still, pumping is good, but not all cars can use this method. Some cars have collapsed oil pans designed with baffles, and the soft straw cannot be fully inserted into the bottom, resulting in an unclean situation of lead in the pumping group. In order to avoid this, it is advisable to use the method of draining oil when maintaining such vehicles.

There are also some high-end cars that do not have a dipstick and are replaced with an oil level sensor, so these cars cannot be changed by pumping oil.

But no matter which way you use, you can't completely clean the oil inside the engine, because the internal structure of the engine is very complex, and there will be more or less a small amount of oil left in it, but you don't have to worry, because when the oil pump is working, the oil will be re-filtered through the oil filter element, and the iron filings, sludge and impurities in the oil will be filtered out, so you only need to replace the oil filter element after maintenance.

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