Is Engine Cleaner Useful?

[AndresMarie]

Engine cleaner is useful, but its effectiveness is relatively limited. Engine cleaner can remove residual sludge and dirt from the engine oil passages, and to some extent, it can also clean carbon deposits from the piston rings and ring grooves, providing practical maintenance benefits for the engine. However, due to its short retention time in the engine lubrication system and the inherent limitations of this no-disassembly cleaning method, the effectiveness of engine cleaner is relatively limited. Although the effect of engine cleaner is somewhat limited, its convenience of use makes it a practical option. With regular use, engine performance can still see significant improvement. Additionally, many 4S shops currently use this method to clean the engine lubrication system.