Can Frequent Oil Changes Clean Sludge?

1 Answers
EverlyRose
07/30/25 10:12am
Frequent oil changes can help clean sludge and carbon deposits inside the engine. To clean engine sludge, you can add a can of engine cleaner half an hour before changing the oil, run the engine for a while, and then drain the oil with the cleaner before adding new oil. Below are the five major functions of engine oil: 1. Reducing friction and high temperatures: A sufficiently thick oil film separates the surfaces of sliding parts, thereby reducing wear. 2. Sealing effect: Engine oil forms a seal between the piston rings and pistons, reducing gas leakage and preventing contaminants from entering. 3. Anti-rust effect: Lubricating oil adheres to part surfaces, preventing contact with water, air, acidic substances, and harmful gases. 4. Cushioning effect: When pressure in the engine cylinder rises sharply, suddenly increasing the load on pistons, piston rings, connecting rods, and crankshaft bearings, the lubrication from the bearings helps cushion the impact. 5. Cleaning effect: High-quality engine oil can carry away carbon deposits, sludge, and metal particles from engine parts back to the oil pan, flushing away contaminants generated on the working surfaces through oil circulation.
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