Can emulsified engine oil be used?

[VonClara]

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.

[EmmettDella]

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.

[McAlex]

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.

[HarrisonDella]

When checking the engine oil, if you find it has emulsified, immediate action is required. Emulsification indicates that water or coolant has mixed into the oil, which is often due to a failed cylinder head gasket seal. Such oil, resembling lubricant diluted with water, completely loses its anti-wear properties. When the piston moves, the oil film can rupture, leading to cylinder scoring, and the crankshaft bearings may also suffer abnormal wear. The last time I encountered this issue, I promptly changed the oil and oil filter, and upon inspecting the radiator and hoses, discovered it was caused by a stuck thermostat. Addressing this quickly is crucial; otherwise, the cost of an engine overhaul could far exceed the expense of dozens of high-quality oil changes. Even the vehicle's onboard computer could malfunction as a result.

[Millie]

Using emulsified engine oil is equivalent to slowly murdering the engine. Normal engine oil is transparent and oily, while emulsified oil turns into a thick, creamy paste, increasing the friction coefficient several times over. The most critical issue is that the combination of water and metal friction produces acidic substances, which can corrode bearing shells and cylinder walls. I remember my neighbor drove for half a month with emulsified oil, and the result was metal debris in the crankcase, costing over 7,000 yuan just to replace the core engine components. Emulsification issues are often accompanied by abnormal cooling system conditions, so it's essential to promptly check the coolant level and the sealing of the pipes. Simply changing the oil won't solve the problem.

[AvaAnn]

My suggestion is to replace the emulsified engine oil immediately. Emulsification indicates oil-water mixing, and this mixture simply cannot withstand the high-temperature, high-pressure environment of the engine. Piston rings operating under such poor lubrication conditions can develop scratches within just a few hours. What's more dangerous is that emulsified oil has reduced thermal conductivity, causing localized cylinder temperatures to spike rapidly. During my last maintenance visit, the technician demonstrated by dripping emulsified oil onto an iron plate—it clumped up instantly when heated. After changing the oil, monitor the coolant temperature gauge closely. If emulsification reappears shortly, you'll need to inspect the engine's internal seals.