Which problems are easily overlooked in car maintenance?

It's very simple to say that the maintenance of the vehicle is simple, and if it is complicated, it will make many owners feel troublesome. Nowadays, with the popularization of automobiles, many vehicle owners have learned the importance of maintenance and maintenance. At the same time, they can regularly perform physical examinations on cars to ensure driving safety. However, in the course of conservation, some small common sense are easily overlooked by everyone. Injury to the vehicle. Today's editors are here to explain to the owners of these easily overlooked issues one by one, hoping to help you.



Do not apply oil to the nuts and bolts of the tires to repair the wheels. Some owners try to prevent the rusty nuts and bolts on the wheels from being rusted. When the installation is done, the nuts and bolts are painted with oil. This is not only an error, but also brings safety to driving. Certain hidden dangers. After the bolts and nuts are tightened, they have self-locking characteristics. After being coated with lubricating oil, the self-locking coefficient between the two becomes smaller and the self-locking performance is reduced. When the automobile is running at high speed, the bolts and nuts are easily loosened and even fall off. , thus causing traffic accidents.

Do not flush the interior of the body with water. The inside of the body cannot be flushed with water because the underside of the floor rubber in the cab is not “a flat river.” The structural requirements make the underside of the cab floor pad a lot of grooves and holes. After rinsing with water, it is either deposited in the groove and does not easily dry, or flows from the through hole to parts such as the transmission to cause rust. In particular, cars with better sealing performance cannot wash the interior of the vehicle directly with water. The correct method is to wipe with a wet cloth, but to avoid accumulation of water.

Different brands of coolant should not be mixed with different brands of coolant. The chemical properties may differ greatly. For example, an effective preservative for ferrous metals is often corrosive to aluminum products; while for aluminum alloys, the preservatives are applied to ferroalloys. harmful. Because different brands of coolants use different preservatives, they cannot be mixed.

It is the habit of many drivers not to step on the accelerator before starting the engine when the EFI car starts, especially when the cold car starts in winter. However, this starting method is not suitable for EFI cars. The engine equipped with an electronically controlled fuel injection device is different from an ordinary carburetor engine. Its fuel injection control device can automatically adjust the fuel supply according to the temperature and operating conditions of the engine. The engine starts smoothly, that is, when the cold start, the fuel injection control device can automatically increase the fuel supply. Therefore, when the engine of the EFI sedan is started, there is no need to step on the accelerator, and it is even more urgent not to step on the engine before starting the engine. Otherwise, the engine start is not good.