Is it necessary to add engine oil cleaner?

[MacTaylor]

It can be added and will not harm the engine. Here are the details: 1. Regular replacement: A clogged oil filter can obstruct the flow of lubricating oil, leading to poor engine lubrication, increased wear, and even bearing seizure. It should be cleaned or replaced regularly. Typically, it should be replaced every 8,000 km, or every 5,000 km in dry climates. 2. Car maintenance: During maintenance, the 'three filters' should be replaced—the fuel filter, air filter, oil filter, and the engine oil. Currently, most cars use gasoline as fuel, so the fuel filter is essentially the gasoline filter, often referred to as the 'fuel filter.' The role of the 'fuel filter' is to filter out impurities generated during gasoline combustion. 3. Potential issues: After prolonged driving, the oil filter and fuel filter can accumulate many impurities, causing incomplete fuel combustion, reduced fuel efficiency, and increased fuel consumption. They should be replaced regularly. The air filter can also accumulate dust and bacteria; if not replaced, the air circulating inside the car can affect human health.

[VanBraxton]

I see this topic is quite widely discussed, so I'll share my own driving experience. You don't need to add engine flush every time you change the oil, unless your engine feels abnormal, like poor acceleration or increased noise. Otherwise, it's really unnecessary. My car has been running for almost ten years, mostly in urban areas where carbon buildup is common, so I add a good quality flush every two or three oil change cycles. It helps dissolve sludge and carbon deposits, preventing blockages and extending engine life. But using it too often is a waste of money—each bottle costs dozens of yuan, adding up to over a hundred yuan in extra costs, which isn't worth it. The key is your maintenance habits. If you change the oil on schedule with good-quality oil and maintain normal driving conditions, saving money is usually the better choice. Remember, don't expect it to solve major issues—if your car is relatively new or recently purchased, you can skip it altogether. Regular maintenance is the core principle; otherwise, repair costs will be much higher.

[SavannahFitz]

Regarding engine oil cleaners, I believe it mainly depends on the specific situation to determine whether it's necessary. As someone who frequently handles vehicles, if the car often drives at low speeds in congested roads or shuts down shortly after starting, sludge is prone to form in the engine. In such cases, adding a cleaner can indeed be helpful. It can remove deposits and improve cold-start performance. However, don't overuse it, such as adding it with every oil change, as it may dilute the oil or damage seals. It's recommended to use it when symptoms appear, such as a sudden increase in fuel consumption or excessive noise. At other times, using high-quality oil and changing the filter on time is sufficient. As for product selection, choose reputable brands and avoid cheap options, as they may harm the engine. Generally, if there are no major issues with a household car, it's not recommended, saving money for more urgent repairs, such as checking spark plugs or filters.

[Pam]

As a young person, I think whether to add engine oil cleaner mainly depends on whether it's worth the cost. A decent brand cleaner costs around 30-50 yuan, plus the expense during oil change, which is quite a significant expenditure for me. If the car runs smoothly normally without any abnormal engine noises, why spend extra money? From my own experience, new cars don't need it for the first few years at all. Only when the car gets older or performance declines should you occasionally try it. But don't rely on it—switching to better oil or shortening the oil change interval is more cost-effective. As for carbon deposit cleaning, driving long distances on highways can naturally alleviate it. Saving money for a new car or upgrading parts is more appealing—don't be fooled by sales pitches.

[DelJaxon]

I enjoy doing car maintenance myself and have used engine cleaners a few times, but I don't feel they're absolutely necessary. The process involves pouring the cleaner into the old engine oil, letting the engine idle for about ten minutes, and then changing to new oil. You can indeed see dirt being flushed out, and the engine sound becomes quieter. However, results vary from person to person—after my last use, I noticed a slight drop in fuel consumption, but my friend saw no change. Be cautious: using the wrong brand or too much cleaner might damage your car and cause oil leaks. Product selection is crucial, so always follow the instructions. Additionally, if your engine is old or has significant carbon buildup, adding a small amount occasionally can help prevent issues, but regular maintenance focusing on oil level and cleanliness is more important. DIY is fun, but don't expect miracles.

[NatalieLynn]

I believe the key to engine oil cleaners lies in safety and necessity assessment. If the vehicle is in good condition, there's really no need to add them, which actually saves hassle. However, under specific circumstances, such as prolonged parking or exposure to dusty environments, carbon buildup in the engine may increase, and adding a small amount of cleaner can help address potential issues. Avoid blind usage, as incorrect choices may lead to oil passage blockages or affect lubrication effectiveness—it's advisable to consult a professional shop for testing before deciding. Environmental considerations shouldn't be overlooked either; additives may increase pollution, so use them sparingly and only when necessary. Developing good habits, such as regularly checking the oil condition and driving smoothly, is far more effective than relying on these products and can also reduce maintenance risks.