What are the consequences of using cleaning oil to clean an engine?
3 Answers
Using cleaning oil to clean an engine can lead to consequences such as engine pre-ignition or engine piston seizure, which may render the engine irreparable if severe. The engine cleaning oils available on the market primarily consist of low-cost mineral oils and a high proportion of detergent dispersants. After cleaning the engine, residual detergent dispersants may remain inside, which can impair the performance of new engine oil, especially in direct-injection engines, where the impact can be critical. An engine is a machine that converts other forms of energy into mechanical energy, originating in the UK. It can refer to both the power-generating device and the entire machine including the power unit. Types of engines include internal combustion engines, external combustion engines, electric motors, and more.
I previously used engine flush on my old car, thinking it would remove carbon deposits, but it turned out to be a disaster. After the flush, the engine noise increased, the oil light came on, and inspection revealed that loosened sludge had clogged the oil passages, causing inadequate lubrication and nearly burning out the bearings. This kind of DIY operation is high-risk, especially for older cars, as it can trigger more serious malfunctions and compromise driving safety. I ended up spending even more money to have it fixed at a repair shop—totally not worth it. Now I only trust professional maintenance, and regular oil changes have proven to be more reliable and effective. Cars can retaliate if treated too harshly.
Cleaning the engine may sound smart, but it actually causes numerous problems. Especially when carbon deposits are stirred up, they can easily get stuck in narrow oil passages, leading to poor lubrication and accelerated component wear. In the long run, seals may be damaged, causing oil leaks and reduced power. Many car owners try it themselves to save money, only to end up with doubled repair costs. I have a friend whose high-mileage car was scrapped because of this. It's recommended to use such products only under professional supervision. Occasional use on new cars might be acceptable, but don't make it a regular habit. For maintenance, sticking to regular oil changes is still the most reliable approach.
