Can Civic Clean up Carbon Deposits in 2008? Is it harmful to the engine?

At present, there are only two ways to remove carbon deposits in repair shops. One is to use the disassembly-free cleaning method when the carbon deposition is not serious, and clean by adding special cleaning agent liquid. Second, if the carbon deposition is serious, the valve and cylinder block should be cleaned by uncovering the cylinder head.

One is to take some preventive and remedial measures to minimize carbon deposition, 1, and use clean fuel that meets the label; 2. Cultivate good driving habits and shift gears by hand over 2000 rpm; 3. Raise the speed at regular intervals, so that the engine can run at high speed to remove slight carbon deposit.