How to Clean Carbon Deposits with Dry Ice?

[FinleyDella]

Dry ice cleaning works through a process of physical cryogenic freezing, impact peeling, and blow-off removal. Below are the principles of dry ice cleaning for carbon deposits: 1. New cold spray technology: Utilizing the high-pressure air from an air compressor to spray dry ice onto engine carbon deposits, the accelerated impact of dry ice particles causes the carbon deposits to crack. The cryogenic temperature of dry ice freezes and embrittles the carbon deposits, reducing their adhesion. This rapidly freezes and peels off dirt and oil from the surface without causing any damage to the engine's metal surfaces or affecting its sealing. Moreover, dry ice cleaning machines can quickly clean carbon deposits without disassembly, with visible results. 2. Physical cryogenic freezing: The low temperature of dry ice freezes the engine carbon deposits, increasing their brittleness, reducing viscosity, and weakening adhesion. Combined with the impact peeling from compressed air, the embrittled carbon deposits form cracks. Under the temperature changes of dry ice, they contract, and with the impact of air waves, effectively cleaning the carbon deposits.

[Serenity]

Using dry ice to clean carbon deposits is quite effective, but safety precautions must be taken during operation. For example, last time I tried cleaning the intake valves myself, I had to preheat the car to operating temperature first, which softens the carbon deposits. Then, wearing gloves and goggles, I used specialized equipment to spray dry ice particles. The ultra-low temperature of dry ice causes the carbon deposits to freeze and contract rapidly, and the impact force then cracks and dislodges them, much like shattering glass. Once completed, the dry ice evaporates directly, leaving no wastewater or chemical residues, making it much more environmentally friendly than traditional methods. Carbon deposits are usually left behind by incomplete fuel combustion and can clog pipes, affecting engine performance. Regular cleaning can save fuel, but it's best to seek professional help to avoid damaging parts. If you frequently drive short distances, carbon deposits are more likely to accumulate, so I recommend cleaning once a year as a preventive measure. If you do it yourself, be careful not to inhale dust or frostbite your hands, and make sure you're proficient with the equipment, otherwise the results may be compromised. The whole process is quick, taking about half an hour, and the engine runs much smoother afterward.

[SanAshlyn]

My first experience with dry ice carbon cleaning was at a repair shop, and it felt absolutely amazing. The mechanic connected the device to the engine, and tiny dry ice particles were sprayed out, making crackling sounds upon contact with the carbon deposits. Within minutes, thick layers of black carbon were gone. It doesn’t damage the engine surface, and the exhaust even felt fresher after cleaning. Carbon buildup commonly occurs in the throttle body and fuel injectors, causing sluggish acceleration and higher fuel consumption when severe. The dry ice method involves no chemicals and is environmentally friendly, making it a healthier option than chemical cleaners. Although slightly more expensive, it’s a worthwhile investment as it prevents costly major repairs. Professional operation is required—don’t attempt it yourself to avoid safety risks. My advice is to warm up the engine for 10 minutes before cleaning to soften the carbon deposits for better results. For frequent drivers, especially in city traffic, cleaning every 20,000–30,000 km helps maintain peak performance. Overall, it’s a convenient and efficient method, and I recommend all car owners try this innovative cleaning technology.

[OJake]

Dry ice cleaning removes carbon deposits through physical impact and cryogenic effects. The high-speed projection of dry ice particles causes significant temperature differences upon contact with carbon buildup, leading to contraction and embrittlement, while the impact force shatters the carbon layer. Afterwards, the dry ice sublimates completely without leaving residue. It doesn't harm the engine's metal components as there are no chemical reactions involved. Carbon deposits form due to incomplete combustion or poor fuel quality, accumulating in the intake manifold or valves. I've cleaned internal engine areas using a professional projection gun for precise operation, with visible results in about 15 minutes. The principle is similar to water pressure washing but safer and more accurate. Note: Pre-warm the machine to reduce temperature difference risks and wear protective gloves to prevent frostbite. It's environmentally friendly, highly efficient, and suitable for most vehicle models.