How to Deal with Carbon Deposits in Diesel Vehicles?

2 Answers
PeterAnn
07/29/25 3:14pm
Use methods such as wire brushes, scrapers, bamboo chips, or sandpaper to remove carbon deposits and oil stains. Utilize high-speed airflow to spray crushed walnut, peach, or apricot shell particles onto the part's surface to remove carbon deposits and oil stains. Apply a carbon remover to soften the carbon deposits and oil stains on the part's surface, causing them to lose their bonding ability with the metal, then remove the softened carbon deposits. Most additives contain chemical components that can clean carbon deposits and oil stains.
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VonDaniela
08/13/25 7:57am
As a seasoned diesel car owner with over a decade of experience, I've also encountered carbon buildup issues, leading to sluggish engine performance and soaring fuel consumption. The key to tackling carbon deposits lies in a multi-pronged approach: first, use high-quality fuel additives, such as adding them to the tank before a long-distance drive, which can dissolve some deposits in the fuel injectors. If the results are unsatisfactory, it's best to visit a professional repair shop for disassembly cleaning or ultrasonic treatment—reasonably priced but highly effective. Driving habits also play a crucial role; minimize idling and frequent short trips, and opt for highway driving to keep the engine at higher RPMs, which helps prevent new carbon buildup. Severe carbon deposits can clog the EGR system or reduce power, increasing maintenance costs, so I make it a habit to inspect every 5,000 km and address issues promptly. Remember, DIY cleaning requires caution—injector components are delicate and easily damaged, making professional servicing the safer choice.
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