Car carbon deposition has always been the most headache of car maintenance, but if we pay attention to good driving habits in the daily driving process, it can greatly reduce the formation of car carbon deposition. Here are some basic techniques.

1、不要長時間怠速行駛

1. Don't idle for a long time.

怠速時間長，發動機達到正常溫度所需的時間也就變長，汽油被噴到氣門背面后蒸發的速度就慢，積碳也由此而生。同時經常怠速行駛，進入發動機的空氣流量也就小，這樣對積碳的沖刷作用變得也很弱，會促進積碳的沉積。

If the idle time is long, the time required for the engine to reach normal temperature will be longer, and gasoline will evaporate slowly when it is injected into the back of the valve, resulting in carbon deposition. At the same time, often idling, the air flow into the engine will be small, so that the erosion of carbon deposits becomes very weak, will promote the deposition of carbon deposits.

2、注意熄火時機

2. Pay attention to the timing of extinguishing

對于裝有渦輪增壓器的汽車，在高速行駛或是爬坡后不要馬上熄火，在怠速運轉10分鐘后再熄火，裝有渦輪增壓器的汽車其形成積碳的速度比一般自然吸氣式的汽車要快數倍。

For automobiles equipped with turbochargers, do not extinguish immediately after high-speed driving or climbing, and then extinguish after idling for 10 minutes. Cars equipped with turbochargers can accumulate carbon several times faster than those equipped with natural aspiration.

建議有車族在常規保養都滿足的條件下每2萬至4萬公里時做一下進氣系統的免拆清洗，也就是在發動機不解體的前提下用專用設備專用方法對車輛的進氣道、氣門、油路等容易形成積碳的部位進行清積碳的操作。

It is suggested that the car owners should clean the intake system without disassembly every 20,000 to 40,000 kilometers under the conditions of routine maintenance. That is to say, under the premise that the engine does not disintegrate, the special equipment method should be used to clean the intake port, valve, oil path and other parts of the vehicle which are easy to form carbon deposit.

3、使用清潔汽油

3. Use clean gasoline

汽油中的雜質是形成積碳的主要成分，所以清潔度高的汽油形成積碳的趨勢就弱一些。但是要注意高標號并不等于高質量，標號只代表油的辛烷值，并不能代表品質和清潔程度。一些車主為了保證汽油的清潔度，會采用在汽油里添加汽油清潔劑的做法。這樣可有效地防止在金屬表面形成積碳結層，并能逐漸活化原有的積碳顆粒并慢慢去除，從而保護發動機免受傷害。不過汽油清潔劑的添加一定要慎重，如果加入了偽劣的產品會得到相反的效果。

Impurities in gasoline are the main component of carbon deposition, so the trend of carbon deposition in gasoline with high cleanliness is weaker. However, it should be noted that high labeling does not mean high quality. The labeling only represents the octane number of the oil, but does not represent the quality and cleanliness. In order to ensure the cleanliness of gasoline, some car owners will add gasoline detergent to gasoline. This can effectively prevent the formation of carbon deposits on the metal surface, and gradually activate the original carbon deposits and slowly remove them, thus protecting the engine from damage. However, the addition of gasoline detergent must be careful, if the addition of fake and inferior products will have the opposite effect.