Should the accelerator be cleaned after changing antifreeze?

Key points of automobile engine maintenance

Do a good job of cleaning and cooling.

Engine maintenance: Regular cleaning is very important. Engine is the key to the power output of a car, and it is also closely related to fuel consumption. Therefore, regular cleaning and maintenance of the engine and its accessories can reduce fuel consumption, otherwise it will increase.

First, clean the air filter. If the air filter is blocked or there is too much dust, the air inlet of the engine will be blocked, and a large amount of dust will enter the cylinder, which will accelerate the carbon deposition in the cylinder, so that the engine ignition will be blocked and the power will be insufficient, and the fuel consumption of the vehicle will naturally increase.

Secondly, it is necessary to clean the carbon deposit on the fuel nozzle, because the combustion chamber is easy to deposit carbon, which will lead to difficulties in starting; Carbon deposition in the fuel nozzle will also lead to oil blockage, gasoline injection deformation, poor atomization, and fuel consumption will naturally increase.

In addition, it is necessary to clean the sludge of the throttle valve. There are many reasons for fouling at the throttle, some of which are carbon deposits formed by the exhaust gas from fuel combustion at the throttle; Then, impurities that are not filtered by the air cleaner will remain on the throttle. Too much sludge will cause air resistance and increase fuel consumption.

Generally, the car should clean the throttle when driving 10000 to 20000 kilometers. Engine cooling system: antifreeze is not only used in winter. Some people think that antifreeze is specially used for vehicles in cold areas, which is a misunderstanding.

The working temperature of modern engines is relatively high, and the upper limit of normal working temperature generally exceeds 100℃. Taking domestic cars as an example, the normal working temperatures of engines are: Shanghai Santana 90℃ ~ 105℃, FAW Jetta 85℃ ~ 1 15℃, and Fukang 90℃ ~18℃. If all water is injected, water will boil when the engine temperature reaches 100℃. In addition, water is corrosive, which will produce scale and affect the refrigeration effect.

Therefore, a special cooling medium-antifreeze should be used. The main component of antifreeze is ethylene glycol, which has the characteristics of high boiling point and low freezing point. Antifreeze also contains additives to prevent ethylene glycol from oxidation (which will form highly corrosive by-products), corrosion and foam.

The antifreeze used in the engine has the following protective functions: 1, which plays an anti-corrosion protection role for the components of the cooling system. 2, prevent scaling, avoid reducing the heat dissipation of the radiator. 3. Ensure that the engine can work within the normal temperature range.

Comments: Engine antifreeze must have the characteristics of anti-freezing, anti-boiling, anti-corrosion, anti-scaling and no foaming, and it is not affected by seasons and regions, effectively protecting the engine from corrosion.