Can the oil cleaner be used to clean the sludge of old cars? Is the engine damaged?

Do not add engine oil cleaning agent to the sludge at will. If the oil circuit is blocked, it will be in trouble. Just change the engine oil with good quality. The original engine oil used in my car Mai Rui Bao is of poor quality for a long time, so there is too much sludge, and the abnormal noise of the car is serious. Why not change it to g? T demon? Red engine oil, PAO base oil, strong cleaning ability, can automatically decompose old sludge, and it will be clean after three engine changes. There is no noise when starting at ordinary times, which is much safer than using cleaning agent. Moreover, this high-end all-synthetic engine oil engine oil is more efficient than the original engine oil, and it is no problem to change one at least once at 15000 km.