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Can emulsified engine oil be used?

3 Answers

VonClara

07/23/25 9:30pm

Emulsified engine oil cannot be used. The causes of engine oil emulsification: 1. Crack in the water chamber of the heat exchanger leading to water mixing into the engine oil; 2. Poor sealing of the cylinder head or cracks in the water chamber, loose sealing of the cylinder liner water jacket, or corrosion of the cylinder liner, allowing water from the combustion chamber to enter the engine oil. The strength of the oil film in emulsified engine oil will decrease, making it unable to meet the lubrication requirements of the engine, necessitating replacement. Solutions for engine oil emulsification: 1. Clean the engine and replace the engine oil; 2. Clean the air filter chamber, exhaust pipe, carburetor, and exhaust joint; 3. Fill the engine with kerosene, repeatedly start and shut it off, ensuring the burning time does not exceed 30 seconds, then replace with new kerosene. Engine oil, also known as engine lubricant, serves to lubricate and reduce friction, assist in cooling, seal against leaks, prevent rust and corrosion, and provide shock absorption and buffering for the engine.

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EmmettDella

08/10/25 5:15pm

Absolutely never continue using emulsified engine oil! I had this issue with my car before - found a bunch of white creamy substance on the oil cap, and inspection revealed coolant had leaked into the oil. Emulsified oil has severely reduced lubricating properties and basically loses its protective function. Continuing to use it will accelerate wear on internal engine components, damaging precision parts like piston rings and crankshafts. The worst-case scenario is cylinder scoring over time, which would cost a fortune to repair. Luckily I caught it early last time - immediately changed all the oil and coolant, checked the gaskets, and fixed it for just over 300 yuan. Safety first - don't try to save small money only to incur huge losses.

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McAlex

09/23/25 5:09am

Veteran drivers' experience tells you that emulsified engine oil is like spoiled milk—using it will definitely cause trouble. When the engine is running, the oil pump sprays emulsified oil to various parts, but the viscosity of emulsified oil changes, leading to sludge blockages where lubrication is needed instead. Once, I saw a severely emulsified engine being disassembled at a repair shop, and the oil pan was full of milky white paste. The mechanic said that the additives in the oil were completely ineffective in this state and would even corrode the components. The entire oil system must be thoroughly cleaned, and all seals must be inspected and replaced; otherwise, major issues will arise within days. Remember to let the engine run for half an hour after changing the oil to allow moisture to evaporate.

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