Should a 10-year-old car have carbon deposits cleaned?

[LaMary]

10-year-old cars need carbon deposit cleaning. Intravenous carbon cleaning: Cut off the fuel supply, connect the carbon cleaning agent to the engine fuel injector, and use the cleaning agent to soften the carbon deposits in the engine so that they can be burned and discharged. However, this method is only suitable for slight carbon deposits and is not very meaningful for vehicles with severe carbon deposits. Disassemble the engine intake manifold for cleaning: Remove the engine intake manifold, scrape off the stubborn carbon deposits, clean it, and then reinstall it. This method has the best and most obvious effect. Drive more long-distance or high-speed: When the vehicle is in a hot state, almost no carbon deposits will be absorbed. At the same time, the high-speed running engine can discharge some carbon deposits. Therefore, cars that often run at high speeds are fuel-efficient and easy to drive.