How to Remove Carbon Deposits from a Car?

2 Answers
DiLeonardo
07/25/25 1:43am
Methods for removing carbon deposits from a car: 1. Use a fuel injection cleaner by cutting off the fuel supply and connecting the carbon deposit cleaner to the engine fuel injector, allowing the cleaner to soften the carbon deposits in the engine so they can be burned and expelled; 2. Disassemble and clean the engine intake manifold by removing it, scraping off stubborn carbon deposits, cleaning it, and then reinstalling it; 3. Drive more long-distance or high-speed trips, as the vehicle in a warmed-up state hardly produces any carbon deposit buildup, and the high-speed operation of the engine can expel some carbon deposits. Carbon deposits in the engine refer to a coking-like substance produced during the engine's operation when unsaturated olefins and gums in the fuel are exposed to high temperatures.
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VonTaylor
08/10/25 4:14pm
I often deal with car carbon deposits myself by purchasing fuel additives and adding them to the fuel tank. I add the additive when the tank is empty, then fill it up with fuel, and drive at high speeds with high RPMs to ensure the engine burns more thoroughly and removes carbon deposits. Choosing well-known brands like XX works well, with noticeable effects in just one or two bottles—the car becomes more powerful and fuel-efficient. I also make sure to avoid short trips that can lead to carbon buildup. Not removing carbon deposits can cause hard starts and sluggish acceleration, so regular cleaning is important. The additive method is simple and time-saving, making it suitable for DIY enthusiasts at home. Checking the car's condition weekly helps maintain its health and prolong its lifespan.
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