What to Use to Clean Spark Plugs?

1 Answers
DeCalvin
07/24/25 9:35am
Using carburetor cleaner to clean spark plugs is recommended. Carburetor cleaner is specifically designed for oil, grease, and carbon deposits, effectively removing carbon buildup without damaging the spark plugs. If spark plugs are damaged, it can directly cause issues such as leakage in the vehicle's ignition system, increased fuel consumption, reduced power, and most importantly, difficulty in starting, affecting the normal use of the vehicle. Severe erosion of spark plugs, such as pitting, damage, or melting and erosion of the electrodes, indicates that the spark plugs are ruined and should be replaced. Spark Plug Location: Spark plugs are installed on the side or top of the engine. In earlier models, spark plugs were connected to the distributor via ignition cables. Over the past decade, most car engines have switched to direct connection between the ignition coil and the spark plug. Spark Plug Replacement Interval: Under normal maintenance conditions, spark plugs should be replaced every 40,000 to 60,000 kilometers. However, this may vary depending on the brand and engine type, so it's advisable to follow the owner's manual. Typically, platinum spark plugs should be replaced at 40,000 kilometers, ordinary nickel alloy spark plugs at 20,000 kilometers, and iridium spark plugs at 60,000 to 80,000 kilometers.
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