How to Clean Carbon Deposits from Car Spark Plugs?

1 Answers
TuckerLee
07/30/25 1:37am
Car spark plug carbon deposit cleaning method: Place the removed spark plug in a plastic or paper cup, directly spray spark plug carbon deposit cleaner into the cup and soak for 5 to 8 minutes. This safely removes carbon deposits from the spark plug without damaging the metal parts of the spark plug, is safe and non-corrosive, improves engine ignition performance, and ensures normal engine operation. The reasons for carbon deposits on car spark plugs are: 1. The air-fuel mixture is too rich or contains excessive lubricating oil; 2. Frequent engine starts or prolonged starting periods; 3. Excessive lubricating oil in the crankcase; 4. Excessive wear of piston rings; 5. Delayed ignition timing.
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