The number of kilometers built at the current high -speed km is getting longer and longer，Basically, the southern part of China can directly penetrate into the northern part of China，If you want to get out of the far door, walking at a high speed is the best choice。We need to make a lot of preparations before running the high speed，Because it is not easy to stop at high speed，And if the car fails during the driving process，It is also a very dangerous thing，Tell you a method today，Do not have to do maintenance before long -distance driving，But be sure to check these 4 parts。

The first thing that needs to be checked is motor oil。Make sure that the vehicle is parked on a smooth road when checking the car oil，Out off the engine，Wait for about 5-10 minutes，Let some oil that stays on the upper part of the engine has sufficient time to flow into the oil bottom shell。Take out the oil ruler and wipe it clean，Then reintegrate the oil ruler into the engine oil ruler hole，Whether the position of the maximum position of the oil marks on the oil ruler of the oil ruler is within the specified range。

The second one needs to be checked is the lamp。Before the high speed，Checking the car lights of the car is also a necessary thing，Because when driving at high speed，Long driving time，The span of the city is also relatively large，So the weather can not be pre -judged in advance，If you encounter severe weather during driving or drive at night，It is very dangerous if there is no light，And if you only change the roadDiscoverThere is a problem with the turn lamp，It is also a very dangerous thing。So you need to check the driving lights before the high speed、Kinshi Light、high beam、Ahead fog lamp、Turn to the light、Whether the function of dual flashing lights is normal。

The third one who needs to be checked is the tire。Tire is a part of the car that directly contacts the external environment，Undertake a heavy body，Also face complex road conditions，Tire is particularly important for safe driving，We need seabet appto check the tire pressure of the car and the pattern of the car，IfDiscoverThe degree of wear of the car's pattern is more serious、Cracks and other situations appear，orDiscoverDrumbags need to change a new tire,Remember，Tire tires have more than 3 holes，Be sure to change the tire。IfDiscoverThe tire pressure of the tire is not enough 2.5，You need to increase the tire pressure of the owner，Running at a high speed can increase 0.1 to 0.2。

The fourth needs to check the battery。can be checked according to these methods，Look at the observation port: Generally, the color that can be seen is divided into three types: green、yellow and black。Green represents sufficient electricity，Yellow represents slightly losing electricity，Black means that it needs to be replaced with a fast cut。Look at the voltage: under normal circumstances，The vacuum voltage of the battery is about 13 volts，Full load voltage generally does not be lower than 12 volts。Look at the appearance: Observe whether there are obvious expansion and deformation or drum bags on both sides of the battery。Once this happens，You need to replace it in time。Of course，Worried about low power in long -distance travel，You may wish to prepare a few battery cables，Have you learned?