What does running-in oil mean?
In recent years, with the increase in car ownership, the topic of car maintenance has become more and more popular. Among them, the concept of "running-in oil" has aroused widespread discussion. So, what exactly does running-in oil mean? What does it do? This article will give you a detailed analysis based on the hot topics and hot content on the Internet in the past 10 days.
1. Definition of running-in oil

Break-in oil, as the name suggests, is a lubricant specially used for the break-in stage of new cars or engines after overhaul. Its main function is to reduce the wear of internal parts of the engine during the running-in period and help form a smooth friction surface on the surface of the parts, thereby extending the service life of the engine.
2. The role of running-in oil
Compared with ordinary engine oil, running-in oil has the following characteristics:
| Features | Break-in oil | Ordinary engine oil |
|---|---|---|
| viscosity | Lower, better liquidity | Varies depending on the label |
| additives | Contains more anti-wear agents | Add different ingredients according to usage |
| life cycle | Usually 500-1500 kilometers | 5000-10000 kilometers |
3. Analysis of hot topics on the entire network in the past 10 days
Through analysis of hot content on the entire Internet in the past 10 days, we found that discussions about running-in oil mainly focus on the following aspects:
| topic | Discussion popularity | Main point |
|---|---|---|
| Does a new car need to use running-in oil? | high | Opinions are divided. Some think it is necessary, while others think modern cars no longer need it. |
| Recommended running-in oil brands | in | Big brands such as Shell and Mobil attract more attention |
| Driving precautions during the running-in period | high | There are many suggestions such as avoiding rapid acceleration and keeping the speed stable. |
4. Suggestions on the use of running-in oil
1.New car running-in period: For traditional fuel vehicles, it is recommended to use special running-in oil for the first 1000-1500 kilometers, and then change to conventional engine oil.
2.Replacement cycle: The running-in oil should not be used for too long. It is generally recommended to replace it immediately after completing the running-in.
3.driving habits: During the use of running-in oil, avoid driving at high speeds and keep the engine speed in a medium range.
4.Differences in models: Many modern new cars have already completed pre-run-in when they leave the factory. They may not need to use additional run-in oil. It is recommended to refer to the vehicle manual.
5. Expert opinions
Professor Wang, an expert in automotive engineering, said: "With the improvement of manufacturing technology, the processing accuracy of modern engine parts has been greatly improved, and the running-in period in the strict sense has been shortened. However, for car owners who pursue perfect vehicle condition, using special running-in oil is still a good choice."
6. Consumer FAQs
| question | answer |
|---|---|
| Can running-in oils be mixed? | It is not recommended to mix running-in oils from different brands |
| Do electric vehicles need running-in oil? | No, electric cars don’t have traditional engines |
| Is running-in oil expensive? | Slightly more expensive than ordinary engine oil, but has a shorter service life |
7. Summary
Break-in oil is a subdivided product of car maintenance. Although its necessity has decreased with the advancement of technology, for car owners who pay attention to vehicle maintenance, reasonable use of break-in oil can still bring certain benefits. The most important thing is, whether you use running-in oil or not, correct driving habits during the running-in period of a new car are crucial.
When choosing whether to use running-in oil, it is recommended that car owners comprehensively consider the vehicle condition, usage environment and personal needs, and consult professional technicians if necessary. At the same time, regular maintenance and good driving habits are the keys to extending the life of your car.
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