How to Determine if the Engine Has Carbon Deposits?

1 Answers
RileyLee
07/29/25 8:51pm
Methods to determine if the engine has carbon deposits: 1. Check the fuel consumption rate; if it continues to rise, it indicates that carbon deposits have formed on the engine; 2. Based on the mileage, the higher the car's mileage, the more carbon deposits will accumulate; 3. Switch to a higher-octane gasoline; if there is an improvement in power, it indicates that the engine has significant carbon deposits. Carbon deposits refer to the tar-like substances formed when fuel and oil vapor that enters the combustion chamber cannot be completely burned. These substances accumulate on components such as intake and exhaust valves, spark plugs, fuel injectors, and piston tops. Under the repeated high-temperature conditions of the engine, they form carbon-like deposits similar to coal.
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