Car treasure book about the car maintenance of six questions

2022-08-03 0 By

Car maintenance is a moment to buy a car, maintenance can be the car in the whole process of use all the time to do the thing.Let’s talk about why.When the engine is working, it will generate a lot of heat, and the proper temperature can ensure that the car engine is in a very suitable operating temperature.If the engine temperature is too high, its efficiency will be reduced, and even parts will be damaged.Therefore, we need to cool the engine through a cooling system to ensure a proper operating temperature.General cooling system we will add special coolant to help cool down.So what are the requirements for qualified coolant?So what does the coolant do?1, anti-freezing: in the case of too low temperature, to ensure that the vehicle cooling system is not damaged by freezing, generally speaking, the antifreeze temperature is commonly used in the freezing point between -20℃ to -45℃, often according to the actual needs of different regions to choose reasonably, in order to meet the requirements of use.2. Scale prevention: because the coolant is deionized water, scale and precipitation can be avoided to protect the engine.3, rust prevention: high-quality antifreeze can avoid the occurrence of rust in the cooling system.If the cooling system rusts, it can lead to accelerated wear and reduced efficiency of heat transfer.4, anti-corrosion: special antifreeze can reduce the corrosion of the cooling system, so as to reduce the possibility of “water leakage” caused by corrosion of the cooling system.5, anti-boiling: under high temperature conditions to ensure that not premature boiling, generally speaking, the commonly used antifreeze boiling point in 104℃-108℃, and when the antifreeze added to the cooling system and pressure, the boiling point will be higher.● Brake oil (also known as brake fluid) is a fluid used in hydraulic braking systems to transfer pressure to stop wheels from turning.Its quality, the choice of correct use or not directly related to driving safety.Occasional issues will replace the brake fluid brake oil has a characteristic is can absorb the moisture in the air, and brake hydraulic system must make brake oil works and atmosphere are interlinked, over time the brake oil to hydrate, under high temperature into a gas bubble, when bubbles appear in the brake oil, brake efficiency will drop,So the brake oil is to check its quality performance in time according to the climate, operating environment, seasonal changes and road conditions, and replace it on time.It is generally recommended to replace it every two years or when driving 50,000 kilometers. When selecting and replacing brake oil, it is also important to remember that different types and different brands of brake oil should not be mixed.Due to different formulations, mixing brake oil will cause the brake oil index to decrease.Other friends feel that the brake oil is not black, the brake does not feel “soft” there is no need to replace the brake oil.In fact, this idea is very dangerous.Because the brake oil boiling caused by the brake failure is basically no warning, brake failure is sudden, the consequences will be unimaginable.● The role of the oil filter is to filter out harmful impurities in the oil from the oil pan, and supply the crankshaft, connecting rod, camshaft, turbocharger, piston ring and so on with clean oil. It plays the role of lubrication, cooling and cleaning, so as to extend the life of these parts.The role of the oil filter is to filter impurities, so it should be replaced with the oil.If not replaced, the oil will not filter and will cause the engine parts to wear and tear faster due to impurities in the oil.Why do some cars do not change the machine filter when changing the oil?As problems in the case of often appear in the vehicle maintenance, for the first time since the new engine in the former 1000 kilometres in to get up to speed, friction produced by the metal debris will be more, but although these debris can be part of the oil filter core filtration but most will still be as oil deposit to serving the oil sump, oil filter to use at this moment,Therefore, when replacing the oil, some manufacturers will not replace the oil filter.But rest assured, this will not affect your normal use.Four, why to change the air filter ● The role of the air filter is to purify the air device.Dust, sand and all kinds of impurities in the air if directly into the engine cylinder combustion, they will accelerate the engine wear, thus reducing the service life of the engine and even cause serious damage to the engine.Air filter element is divided into dry filter element and wet filter element.The dry filter element is also commonly used in our car. Its material is filter paper or non-woven fabric.In order to increase the air passing area, the filter core is mostly processed with many small folds.When the filter element is slightly polluted, compressed air can be used to blow clean, when the filter element is seriously polluted, the new core should be replaced in time.Generally speaking, the air filter element does not have an accurate replacement time, it is determined according to the environment of the vehicle, but the replacement time is not more than 1 year, the vehicle driving distance is not more than 15,000 kilometers.If the air filter is seriously blocked, the intake resistance will increase and the engine power will decrease.At the same time, due to the increase of air resistance, it will also increase the amount of gasoline absorbed, resulting in too thick mixing ratio, thus making the engine running state worse, increasing fuel consumption, but also easy to produce carbon accumulation.Usually should develop the habit of regularly checking the air filter element.The role of air conditioning filter element is to filter the outside air, so as to ensure that the air in the car fresh, no smell.In conclusion, the air conditioning filter element has the following functions: 1, can absorb harmful substances and water in the air.2, can filter dust, pollen, grinding particles and other solid impurities in the air.3. Ensure that unfiltered air enters the carriage as little as possible.4. It can ensure that the air in the driving room is clean and does not breed bacteria. It can effectively intercept pollen and ensure that the driving safety will not be affected by allergic reaction.The role of the air conditioning filter element is to filter air, but after a long time of use, the air volume of the air conditioning filter element can be filtered is reduced, at this time we use the air conditioning system may feel the wind blowing from the outlet is not so strong or not so big;In addition, in the humid environment, air conditioning filter element is also easy to mold and bacteria, resulting in the use of air conditioning mildew or odor.In addition, there may be activated carbon in the air conditioning filter element, the use of activated carbon for a long time, the adsorption filtration function will also be reduced, so the air conditioning filter element needs to be replaced regularly, generally replaced once a year can be.Ordinary use of time can also be their own cleaning air conditioning filter.If your car has an air conditioner filter, it will be designed in the front of the passenger compartment, take the air conditioner filter out, blow it with the air blower, make sure there is not too much dirt on the outside.But remember never wash it with water, or it will go bad.In addition, some cars are not using the filter element but the filter, so you can clean with water.● The role of oil: the engine is the heart of the car, the engine has many metal surfaces friction movement, these parts move fast, poor environment, the working temperature can reach 400°C to 600°C.In such a bad situation, only qualified lubricating oil can reduce the wear of engine parts, prolong the service life, so qualified lubricating oil to meet what requirements?In other words, what is the function of lubricating oil?1, lubrication and wear reduction: there is a fast relative sliding between the piston and cylinder, spindle and bearing bush, to prevent the wear of parts too fast, it is necessary to establish an oil film between the two sliding surfaces.An oil film of sufficient thickness can be used to separate the surfaces of parts that are relatively sliding to reduce wear.2, cleaning cleaning: good oil can engine parts on the carbide, sludge, wear metal particles back to the fuel tank through the circulation, through the flow of lubricating oil, wash the dirty parts on the working surface.3, shock absorption buffer: when the pressure of the engine cylinder mouth rises sharply, the load on the piston, piston chip, connecting rod and crankshaft bearing is suddenly intensified. This load is lubricated by the transmission of the bearing, so that the impact load bears the role of buffer.4, rust and corrosion prevention: lubricating oil can be adsorbed on the surface of parts, to prevent the contact of water, air, acid substances and harmful gases with parts.5. Cooling and cooling: the oil can bring the heat back to the fuel tank and then send it into the air to help the water tank cool the engine.6, sealing and leakage prevention: oil can form a sealing ring between the piston ring and the piston, reduce the leakage of gas and prevent the entry of external pollutants.The condition of the oil directly affects the performance and life of the engine, so we must choose the right oil and change it in time.Problems that may occur if the oil is not replaced regularly:Just said the oil at six o ‘clock, under normal circumstances, the domestic sales of the naturally aspirated engine models will require the user to change when driving 5000 km to 15000 km of lubricating oil, and pressurization motivation models Insist on change at 5000 km, if car don’t or have been in a stopped state, every six months to replace oil at a time.Of course, if you are in the environment and the quality of the oil is good, you can appropriately extend the oil change cycle and time.If your car goes past the oil change cycle and does not change the oil, bad or dirty oil will lose lubrication.In addition, because the oil used for a long time will also be mixed with metal debris, which will also lead to increased mechanical wear inside the engine, which may cause fracture and damage of internal parts of the engine.If the antifreeze is not replaced for a long time, its anti-corrosion, anti-rust and anti-scale function will be reduced, which will cause the failure of the cooling system and even rust.Generally speaking, antifreeze is generally replaced every 1.5-2 years.The above is our reason, eight out of the maintenance of your car is indispensable, just like the human body, if you don’t pay attention to maintenance, both visual and planted a hidden danger to the body health, so don’t afraid to spend money at the expense of maintenance for less at ordinary times, avoid big problem when took out a lot of money, also can prolong the service life of the car, why not