How to Clean Sludge in the Engine?
2 Answers
You can use a dedicated sludge cleaning oil. After draining all the engine oil, add the cleaning oil to the engine, let the engine idle for 15 minutes, and then drain the cleaning oil. Here is some extended information about the engine: 1. Over time, sludge or carbon deposits may form inside the car's engine. However, sludge is harmful to the engine as it can clog the oil passages, affecting the engine's lubrication. 2. The engine contains oil, which needs to be pumped by the oil pump to various parts requiring lubrication. If the oil passages are clogged, the oil cannot reach these parts, leading to increased engine wear.
Last time sludge was found in my car, it was the technician who reminded me during maintenance. If the sludge isn't too severe, you can first try adding a bottle of engine cleaner before changing the oil, letting the engine idle for about ten minutes to allow the chemical to circulate and soften the sludge. Like the cleaning-type engine oil I've used before, after running for two to three hundred kilometers and then draining it, you can see a lot of black residue coming out of the drain port. Experienced drivers remind me that the most crucial thing is to change the oil on time and not to use cheap, low-quality oil, otherwise the sludge will accumulate and thicken, potentially clogging oil passages. In severe cases, even hydraulic lifters can get stuck, requiring major engine disassembly for repairs. After cleaning, be sure to replace the oil filter, otherwise the residue will directly contaminate the new oil.
