What is the function of engine cleaning oil?

[Diana]

Engine cleaning oil serves the following purposes: 1. Remove gum and sludge deposits from the engine lubrication system, restore oil passage cleanliness, improve lubrication effectiveness, reduce friction, and enhance vehicle performance; 2. Clean hydraulic valve components, restore piston ring elasticity, lower engine noise, and reduce lubricant consumption; 3. Decrease exhaust emissions, reduce air pollution, and extend the lifespan of the three-way catalytic converter. The engine's function is to convert the thermal energy of gasoline or diesel into mechanical energy by burning the fuel in a sealed cylinder to expand gases and drive piston movement. Engine maintenance methods include: 1. Using qualified engine oil; 2. Using qualified coolant and antifreeze; 3. Regularly cleaning radiator scale; 4. Periodically removing engine carbon deposits; 5. Regularly replacing the three automotive filters; 6. Maintaining appropriate operating speeds.

[McGabrielle]

I used to be a novice driver, completely clueless about engine maintenance, until I discovered the magic of engine flush. Its primary function is to remove sludge and carbon deposits inside the engine. Over time, these contaminants accumulate like dirt, clogging oil passages and piston rings, increasing engine friction and reducing efficiency. The first time I added a bottle of engine flush before an oil change, let it idle for about ten minutes, then drained it, my car started more smoothly with noticeably reduced noise. It protects internal components from wear and extends engine life. However, don't mistake it for a fix for major issues—it's just preventive maintenance. I recommend using it every 10,000 to 20,000 kilometers when changing to genuine engine oil, as overuse might corrode seals. After cleaning, the engine performs better, saving fuel and giving peace of mind.

[JaylaDella]

Having driven for most of my life, I firmly believe that engine flush oil is a smart investment for car owners. Its fundamental role is to remove internal engine deposits: sludge, varnish, and carbon buildup—these nasty accumulations can clog oil passages or cause bearing seizures over time, impairing lubrication. I use it regularly during oil changes to dissolve contaminants and flush them out, restoring smooth component movement and reducing wear risks. In the long run, it saves significant repair costs and helps the engine run smoother with less noise. But don’t cut corners by buying cheap counterfeit products; only genuine flush oil with moderate usage is safe, or it may damage oil seals. This habit keeps my car running like new even after years, with well-maintained fuel efficiency.

[LouisLee]

I study car details, and the key role of engine flush oil lies in deep cleaning. It removes internal deposits such as sludge and carbon buildup, preventing lubrication system blockages that lead to increased friction. During use, it emulsifies contaminants for short-term operation and expulsion, enhancing overall efficiency. It can reduce component wear and extend engine lifespan, but it must be paired with an oil change to be meaningful—don't use it alone. A simple yet effective maintenance method not to overlook.