1. Prepare cleaning tools, engine surface cleaning agent and engine harness care agent; a small brush, the width of the brush head should not be too large, because there are many and narrow gaps in the engine compartment, it is more convenient to use the narrow head; a mask and a pair of gloves, the engine surface cleaning agent has certain harm to the human body, the smell is a little pungent, so prepare masks and gloves.

2. 找一個停車的位置，發動機的清洗避免不了有污水流到地上，所以在準備清洗之前，最好將車輛停放到人車稀少之處。

2. Find a parking place, the engine cleaning can not avoid sewage flow to the ground, so before preparing to clean, it is best to park the vehicle in a place where there are few people and vehicles.

3. 自上料攪拌車，先將發動機的裝飾蓋卸掉，先用抹布或者刷子對發動機艙進行簡單的除塵，然后就可以用發動機外表清洗劑操作。首先將發動機內部的保險盒、點火線圈、發電機等一些不能沾水和清洗劑的零部件做一下防水處理（這些零部件可以單獨清潔），之后將清洗劑搖勻，再噴在發動機艙內的零部件上，注意噴灑距離保持在15厘米左右就可以了，盡量噴灑均勻一些，油泥多的地方適當多噴一些。

3. From the feeding mixer, first remove the engine decorative cover, first use a rag or brush for simple dust removal of the engine compartment, and then use the engine surface cleaning agent to operate. First of all, waterproof the fuse box, ignition coil, generator and other parts that can't be stained with water and cleaning agent (these parts can be cleaned separately), then shake the cleaning agent evenly, and spray it on the parts in the engine compartment. Pay attention to keep the spraying distance at about 15 cm. Spray it evenly as far as possible, and the place with a lot of oil sludge is appropriate Spray more.

4. 用小刷子清理，在噴完清洗劑后，需等待5分鐘左右，讓清洗劑繼續化解油泥，直至完全化解，然后用小刷子進行刷洗，可以明顯看到油泥化開的效果。發動機艙縫隙較多，一定要耐心刷干凈，因為之后還會噴上養護劑（相當于上了一層蠟油），如果不刷洗干凈，臟東西就封在里面了。自上料攪拌車，發動機的進氣管很容易沾上油泥，顏色難看且不易清洗，需要細心的刷干凈，還有一些走電、走油液的管路，也要清洗干凈，防止油泥和其它污物對它們進行腐蝕，造成泄漏。

4. Clean with a small brush. After spraying the cleaning agent, you need to wait for about 5 minutes to let the cleaning agent continue to dissolve the oil sludge until it is completely dissolved. Then brush with a small brush to see the effect of oil sludge melting. There are many gaps in the engine compartment, so you must brush it patiently, because after that, you will spray the curing agent (equivalent to a layer of wax oil). If you don't brush it clean, the dirty things will be sealed inside. Since the feeding mixer, the intake pipe of the engine is easy to be stained with oil sludge. The color is ugly and difficult to clean. It needs to be cleaned carefully. Some power and oil pipelines also need to be cleaned to prevent oil sludge and other dirt from corroding them and causing leakage.

5. 清水清洗，清洗劑在化解油泥后，還是會附著在發動機艙內的各個零件上，所以在它們即將風干之前，需要用清水清洗干凈，切忌用高壓水槍清洗。自上料攪拌車，在清洗之前先要做一下防范措施，就是先啟動發動機保持怠速狀態，這樣做的原因有兩點：一是防止點線圈等關鍵部位濺到水后，造成短時間啟動困難，二是發動機運轉后，機體溫度會上升，可以加速水蒸發變干。

5. Clean with clean water. After dissolving the oil sludge, the cleaning agent will still adhere to all parts in the engine compartment, so before they are about to dry, they need to be cleaned with clean water, and do not use high-pressure water gun. Before cleaning, the self feeding mixer should take some preventive measures, that is, start the engine to keep idle. There are two reasons for this: one is to prevent the key parts such as the point coil from splashing with water, which makes it difficult to start in a short time; the other is that after the engine runs, the body temperature will rise, which can accelerate the evaporation and drying of water.

6. 線束護理劑，在用水清洗之后，一定要將發動機內部件上的水吹干，氣槍吹干是最好的方式，如果沒有，只能用吸水性好的毛巾擦干，然后待其完全晾干。最后將線束護理劑均勻地噴灑在發動機艙內的各個部件上就好了。這樣做可以防止油泥積累，減緩線束老化，減少老舊車型自燃的幾率。自上料攪拌車價格不算便宜，一定要保養好，讓它為您帶來更多的經濟收益。

6. Harness care agent: after cleaning with water, be sure to blow dry the water on the internal parts of the engine. Air gun blowing is the best way. If not, you can only dry it with a towel with good water absorption, and then wait for it to dry completely. Finally, spray the harness care agent evenly on all parts in the engine compartment. This can prevent the accumulation of oil sludge, slow down the aging of wiring harness, and reduce the probability of spontaneous combustion of old models. The price of self loading mixer is not cheap. It must be well maintained to bring you more economic benefits.