How to Clean a Spark Plug

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Oil on spark plug threads is not something you should ignore because it could impair the functionality of your spark plugs over time. You may need to replace your spark plugs soon or clean them to make sure your car stays in good driving condition. Here’s a quick guide on how to clean a spark plug:

Step 1: Remove the spark plugs using a ratchet wrench and spark plug socket.

Step 2: Clean the spark plug.

A. Using sandpaper

B. Using a quick drying liquid

Man fixing spark plug
Learning how to clean a spark plug is a must for car owners who wish to maintain and fix their own cars.

C. Grit blasting

Step 3: Gap the spark plug.

Step 4: Reinstall the spark plug.

Still having trouble starting your car? It could be a sign that you need new spark plugs. Here are some high-quality replacement spark plugs from to choose from:

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Staff Writers

In the Garage with is an online blog dedicated to bringing DIYers and devoted car enthusiasts up to date with topical automotive news and lifestyle content. Our writers live and breathe automotive, taking the guess work out of car repairs with how-to content that helps owners get back on the road and keep driving.

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