How to Clean the Sludge on the Outside of the Engine?
2 Answers
Methods for cleaning engine sludge: 1. Generally, 4S shops clean engine sludge by adding a cleaning agent to the engine lubrication system. Before changing the oil, the sludge cleaning agent is poured into the engine through the oil filler port, and the engine is started and kept idling for 5 to 10 minutes. Then, the engine is turned off, and the sludge cleaning agent is drained along with the oil. 2. During engine operation, the high-temperature working environment, wear from the relative movement and friction of various surfaces, and the combustible mixed gases entering the crankcase from the cylinders can all affect the performance and quality of the engine oil.
When cleaning oil sludge from the exterior of the engine, I find it quite a simple task as a DIY car owner who frequently works on my vehicle. I usually start after the engine has cooled down, such as during a free weekend afternoon. First, I spray a commercially available engine degreaser evenly over the entire oil sludge area, making sure not to miss any crevices. Let it sit for 5-10 minutes to dissolve the grime, then gently scrub with an old toothbrush or soft-bristle brush, paying extra attention to stubborn oil deposits. After scrubbing, rinse with a watering can or low-pressure spray nozzle, but avoid electrical connectors and the battery to prevent short circuits. Finally, dry with a cloth or let it air dry for half a day. This process instantly brightens the engine bay and prevents wire corrosion. I do this every three months—it saves money and hassle. Just remember to wear gloves to protect your hands.
