Buying a car is easy but maintaining a car is difficult，Besides refueling，The most troublesome and expensive thing for car owners is maintenance。Oil maintenance is a very important one。First，We need to understand what engine oil is used for。Motor oil is engine lubricating oil，Mainly lubricates the engine and reduces wear、Auxiliary cooling、Sealed and leak-proof、Anti-rust and anti-corrosion、Shock-absorbing and buffering functions，Known as the "blood" of cars。If there is a problem with the engine oil，The engine will break down，The car will have problems。

As for how to change the oil at 5000 kilometers，There is a saying that there is a fast repair chain in the United States called Jiffy Lube，Every time a vehicle is maintained，Everyone will put a piece of paper on the front windshield，Remind you seabet loginto do maintenance at this time or mileage，And Jiffy Lube’s standard is 3000 miles (4800 kilometers)。

However，With the improvement of engine oil quality，This standard has long been outdated，Domestic 4S stores now require maintenance after 5,000 kilometers，Mostly for profit。Because the competition in the automobile market is becoming increasingly fierce，Selling cars is no longer very profitable，In order to maintain sufficient profits，Can only be obtained from after-sales service，Shortening the maintenance cycle is one of the methods。

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The most reliable thing is to perform maintenance according to the time or kilometers in the vehicle manual，But this is just a reference，In fact, you need to consider it based on the type of engine oil you use and the driving environment。

Generally speaking，Mineral engine oil is more suitable for 5000km，There is no problem if you change the semi-synthetic oil every 7000km，Fully synthetic engine oil can reach 10,000km。So，Not all engine oil must be changed after 5000km。
But，If you consider the domestic car environment，The oil replacement time can be shortened appropriately。

First，Just bad traffic conditions，In first- and second-tier cities with a huge number of vehicles，Commuting rush hour often becomes a pot of porridge，The oil temperature rises due to stopping and going，It will inevitably accelerate the degeneration of engine oil。

Secondly，The oil quality is also average，Domestic gasoline production is mainly based on catalytic cracking，Sulfur content too high，After combustion, entering the oil circulation through the piston rings Seabetwill accelerate the degeneration of the oil。

Also，Your driving habits will also affect the oil change cycle，If you often walk on mountain roads or drive more intensely，The engine oil replacement cycle should also be advanced，Because this will accelerate the wear of the vehicle’s internal components，The performance of engine oil also decays faster，The lubrication effect will be greatly reduced。
Whether you need to change the oil or not is up to you!

1. Look and smell
Pull out the oil dipstick，Observe the color of the engine oil，If it is dark brown and has poor fluidity，Or if there is a pungent smell，Indicates that the engine oil has deteriorated，It’s almost time to change。

2. Oil test paper
Take a piece of white qualitative filter paper，Put a few drops of old engine oil on the paper，After standby oil leakage，Better quality engine oil should be powder-free，To touch dry and smooth，And the yellow infiltration zone is clear，If the edge between each ring is harder，There are more impurities，It’s almost time to change。

Note:
After changing the oil, even if you run one or two thousand kilometers，Even hundreds of kilometers，The oil color may also become darker。Because engine oil generally has a cleaning effect，Able to clean carbon deposits and oxides inside the engine，and dissolve it，So it will change color quickly。So，Don’t judge whether the engine oil has deteriorated simply by its color，But it needs to be considered comprehensively。