How often should the engine oil passages be cleaned?
4 Answers
The engine oil passages should be cleaned approximately every 30,000 to 50,000 kilometers. An engine is a machine that converts other forms of energy into mechanical energy. Engines can be categorized into: 1. External combustion engines: where fuel burns outside the engine; 2. Internal combustion engines: where fuel burns inside the engine; 3. Gas turbines: which generate high-pressure gas through combustion, using the high-pressure gas to rotate the turbine blades; 4. Jet engines: which directly generate thrust by expelling high-speed gas from the nozzle. Engines can also be classified by cylinder arrangement into: 1. Inline engines; 2. V-type engines; 3. W-type engines; 4. Horizontally opposed engines; 5. VR engines.
That's a great question. As a veteran driver who has been behind the wheel for decades, I believe cleaning the engine oil passages depends on actual driving conditions. If you frequently encounter heavy traffic in the city, it's best to clean them every 20,000 kilometers. For those who often drive on highways, you can extend the interval to 30,000-40,000 kilometers. Cleaning ensures smoother oil flow and prevents carbon buildup, otherwise the engine may suffer from wear and overheating. Make it a habit to check during routine maintenance—it saves hassle in the long run. Don’t clean too often (it’s a waste of money) or delay it too long (it shortens engine life). Pay attention to oil quality and change it regularly to reduce the risk of clogged oil passages. After all, your car is a companion—take good care of it, and it’ll serve you longer.
Based on my professional knowledge, cleaning the engine oil passages is generally recommended every 30,000 kilometers or so, depending on the vehicle model and road conditions. The interval can be extended for new cars or those with advanced systems, while older vehicles or those operating in dusty environments may require earlier attention. Clogged oil passages can lead to uneven oil distribution, increasing friction and causing component damage. Chemical cleaners or specialized tools are commonly used for cleaning—avoid DIY attempts. It's best to combine this with an oil change, and using high-quality oil can help prevent issues. Regular maintenance is crucial; otherwise, by the time the engine starts making unusual noises, it may be too late. Keeping detailed maintenance records is advisable.
As a car owner, saving money is my priority, so cleaning the fuel system doesn't need to be too frequent. Doing it every 20,000-30,000 kilometers is enough, don't exceed that by much. Change the engine oil and filters more often in daily use; clean oil naturally keeps the fuel system from getting dirty. Keep track of the odometer yourself and have the shop check it during maintenance. It's simple and hassle-free, saving money on unnecessary cleaning. Control your driving habits and avoid driving on dusty roads. Choosing good quality engine oil can significantly reduce maintenance costs.
