How to Remove Engine Carbon Deposits?

[DeMax]

Clear engine carbon deposits by: opening the oil filler cap, pouring in the entire can of cleaner, replacing the oil filler cap, then idling the engine for 10 minutes before shutting it off. Methods for cleaning carbon deposits in cars include: 1. Cleaning the throttle body: Remove the engine cover, take off the throttle body, clean it with carburetor cleaner, dry it with a cloth, and reinstall it; 2. Cleaning fuel system carbon deposits: Add a full bottle of fuel additive to the fuel tank before refueling; 3. Cleaning intake system carbon deposits: Pour intake system cleaner into the reservoir of a specialized cleaning device, connect it to the intake system, and use engine vacuum to draw the cleaner into the intake tract for cleaning purposes.

[DeMaria]

I have an old car, and the engine occasionally gets carbon buildup, making the car sluggish and fuel-inefficient. I've cleaned it myself a few times using three common methods: First, adding fuel additives, like those cleaners you put in the fuel tank, then driving at high speeds for a few hundred kilometers to keep the engine RPM high, which can burn off some carbon deposits. Second, taking it to a professional repair shop where they use an IV cleaning device to inject cleaning fluid into the intake system—it's convenient but more expensive. Third, removing the engine cover and manually wiping or spraying to clean, a job I can't do myself and requires a mechanic. To prevent carbon buildup, it's good to drive long distances regularly, use 95-octane or higher gasoline, and avoid short trips. Regular oil changes and air filter replacements also help, with cleaning recommended every 10,000 to 20,000 kilometers.

[MacJuniper]

As an average car owner, I dread wasting money when cleaning engine carbon deposits. So I've tried many cost-saving tricks: adding reliable oil additives and driving at higher RPMs; or using fuel system cleaners, pouring some in with each fill-up, then melting deposits by highway driving. If these don't work, professional shop treatment becomes necessary - an IV cleaning costs a few hundred but ensures safety. Warning: heavy carbon buildup causes engine shaking and increased fuel consumption - detect early. Regular maintenance is crucial. I strictly change oil every 5,000km using synthetic oil to reduce carbon formation. Never cut corners with substandard fuel or frequent short trips - that accelerates carbon buildup.

[DiFinn]

Here are several methods to clean engine carbon deposits: First, pour a cleaning agent into the fuel tank and drive the car at high speed; for severe cases, visit a repair shop for an intravenous cleaning; the most thorough method is to physically clean by disassembling the engine. The key lies in prevention, such as regularly changing the engine oil, avoiding low-grade gasoline, and reducing idle driving. Carbon deposits can cause sluggish acceleration and increased noise, so clean them early.

[Millie]

I've cleaned engine carbon deposits several times and found the most effective method is using professional cleaning agents with an IV drip device. The process is simple: inject the solution into the intake system and let the engine idle for half an hour to dissolve the deposits. Combining this with high-RPM driving yields better results. Preventive maintenance is crucial - perform maintenance every 8,000 kilometers and use higher-grade gasoline to prevent carbon buildup. Severe carbon deposits can damage engine performance and should be addressed promptly.