What are the methods for cleaning carbon deposits in a car?
2 Answers
Methods for cleaning carbon deposits in a car include: 1. Adding fuel additives when refueling; 2. Engine disassembly and cleaning; 3. Using a car drip cleaning method. The main components of car carbon deposits are: 1. Metal debris generated from engine friction and wear; 2. Dust from the air; 3. Sticky substances formed when engine oil oxidizes, thickens, and acidifies under high temperatures; 4. Paint film produced by the oxidation and concentration of lubricating oil. The effects of increased car carbon deposits include: 1. Difficulty starting; 2. Insufficient horsepower, unstable acceleration, and shaking; 3. Air-fuel ratio imbalance; 4. Failure to meet emission standards; 5. Reduced combustion efficiency. Methods to prevent carbon deposits in a car are: 1. Waiting for 1 minute or 30 seconds before turning off the engine after reaching the destination; 2. Increasing the shift RPM for manual transmission vehicles.
To clean carbon deposits myself, I would follow several steps. The most thorough method is disassembly cleaning, where the intake pipe and throttle are removed to directly spray cleaner and use a small brush to slowly scrub away the carbon deposits. However, this should be done by a professional mechanic, and ordinary car owners should not attempt disassembly. For a simpler approach, using a fuel system cleaner added to the fuel tank can show results after driving a few hundred kilometers. If the carbon deposits are clumped, walnut shell blasting is a good method, where high-pressure air streams walnut shell particles into the engine to scrub off the carbon deposits through friction. Recently, I heard that dry ice cleaning is quite advanced, using -78°C carbon dioxide particles to freeze and embrittle the carbon deposits for easy removal. It's also important to pay attention to daily driving habits; occasionally driving at high speeds and pressing the accelerator harder to raise exhaust temperatures can help burn off some carbon deposits.
