Some cold knowledge in automobile maintenance! !

When it comes to maintenance, everyone is familiar. Every once in a while, our car needs to go to a 4S shop or a repair shop for maintenance. Today, I will tell you some cold knowledge about car maintenance.

First, synthetic engine oil is actually more economical.

Generally speaking, many after-sales service departments will launch various maintenance packages. The price of mineral oil is really cheap, but will it save money if it is cheap?

As we all know, the replacement period of mineral oil is 5000 kilometers or half a year, which means it needs to be replaced twice a year. And every time you change the oil, you need to calculate the cost of filtration and installation on the machine, which will save a lot of money.

On the other hand, synthetic engine oil is more convenient. Although it is a little more expensive than mineral oil, it can be replaced every 65,438+00,000 kilometers or 65,438+0 years, which can save working hours, machine filter fees and part of engine oil costs. Even the time cost of driving for maintenance is saved, so why not?

Second, pure water cannot replace coolant.

It is usually recommended that the owner change the coolant every 2 years or 40,000 kilometers. If it is found that the coolant is lower than the minimum scale value, it must be added in time, otherwise it will affect the cooling performance of the engine. In summer, when the temperature is high, the coolant loses faster. Some car owners think that adding water is enough after finding that the coolant is low, but it is best not to do so.

Coolant is not only used for cooling and antifreeze, but also has the characteristics of high boiling point, good viscosity-temperature performance, anti-corrosion and anti-scaling. The above characteristics are irreplaceable by ordinary water, even pure water, so we should use coolant instead of water when replacing coolant.

Third, about air filters and air-conditioning filters.

No matter whether the car is an engine or an air conditioner, it needs to exchange gas with the outside world, so there is an air filter. The air filter mainly filters the air entering the engine, mainly to prevent some things from entering the engine, such as catkins. Just like putting a mask on an engine, the mask needs to be replaced regularly, and so does the air filter.

The air filter needs to consider the use environment. If you are in a catkin or dusty place, or if you haven't changed the air filter for a long time, you need to change it as soon as possible. There are also some maintenance items, such as cleaning the throttle, cleaning the oil pipe, cleaning the fuel pipe and cleaning the air conditioning pipe. During maintenance, the key point is to clean up the carbon deposit, including the valve and the corresponding intake pipe.

The performance of each car is different, usually in poor condition, high fuel consumption and weak acceleration. If carbon deposits lead to engine failure, some cleaning agents can be used to remove carbon deposits. If the carbon deposition is very serious, the engine needs to be completely disassembled for cleaning. Generally, comprehensive disassembly and cleaning methods are not recommended.