Types of fluids in cars that need to be replenished and replaced periodically
To operate a car, it is necessary to use many types of fluids with different functions. These fluids must be replaced or replenished periodically to help the car's mechanical systems operate smoothly and the car become more durable.

Engine lubricants
Engine oil has the function of lubricating and cooling machine parts. After a period of operation, gas and metal shavings may leak into the lubricating oil. At this time, the lubricating oil is aging, not ensuring the viscosity to lubricate and cool. Therefore, the car owner must replace it to ensure the performance, helping the engine run smoothly.
Changing the oil will help remove metal shavings generated during engine operation, preventing these metal shavings from clogging oil lines and preventing parts from being lubricated.
Vehicle owners are recommended to change engine oil after 5,000 km or 10,000 km depending on the different oil grades and types.
Train oil
Gear oil helps the parts in the gearbox operate smoothly. Gear oil needs to be replaced over time or distance traveled.
Because it is not affected by combustion gases like engine oil, transmission oil has a longer replacement cycle. On average, after about 80,000-160,000 km, the transmission oil will need to be changed, the exact number will depend on the type of transmission and the type of oil used.
Due to the long replacement cycle, many people often forget to change the oil regularly, leading to serious damage to the gearbox.
Coolant solution
This is a solvent used in the engine cooling system to prevent the engine from overheating. If the coolant solution is low or empty, the engine will overheat, leading to serious engine seizure.
In theory, the cooling system is a circulating system, so the solvent will not be lost. However, during use, the pipes and joints are not sealed, which can easily lead to loss of coolant.
Therefore, the coolant needs to be checked and refilled every 10,000km and should be replaced after about 2-3 years of use. The coolant level should also be checked every time you travel long distances to ensure that no unexpected problems occur.
Power steering fluid
Nowadays, there are very few vehicles using hydraulic power steering system. For the hydraulic power steering system to work, power steering fluid is an indispensable solution.
Accordingly, vehicle owners need to check and replace the solution periodically according to the manufacturer's recommendations. Vehicle owners should also check regularly, too much oil loss is also a sign of some damage.
Windshield washer fluid
Although not as important as the above fluids, but in terms of visibility when driving, this type of fluid also plays a vital role when driving. The reason is that when the car is traveling at high speed, accidentally mud splashes on the glass and the car runs out of windshield washer fluid, it will be very dangerous for the driver because he cannot observe the front.
Therefore, car owners should always pay attention to this type of liquid, make sure it is not dry before using the car. For better optimization, you can use more specialized soluble detergent powder into the solution to clean the car glass cleaner.
Brake fluid
Brake fluid is used to transmit pressure from the brake pedal to the brake pistons, making the braking process easier. This type of fluid does not need to be completely replaced, but after every 10,000km the car owner needs to check it additionally and after 100,000km it needs to be completely replaced.
During operation, brake fluid leakage through pipes and joints is inevitable. If not checked regularly, it will lead to brake fluid running out, causing a very dangerous brake loss.