Are Car Spark Plugs the Same?

1 Answers
McSkylar
07/30/25 1:12am
Car spark plugs are not the same. When replacing spark plugs, one should not only focus on the material and the number of electrodes but also pay attention to the heat range of the spark plug. Each brand's heat range corresponds to specific vehicle models. When purchasing, ensure the heat range matches your vehicle model; otherwise, it may cause varying degrees of impact. The main types of spark plugs include: standard spark plugs, extended tip spark plugs, electrode spark plugs, seat spark plugs, pole spark plugs, and surface gap spark plugs. Steps for replacing spark plugs: Open the engine hood, lift the plastic cover of the engine, and remove the high-voltage wires. Mark each cylinder's position to avoid confusion. Use a spark plug socket to remove the spark plugs one by one. While removing, check for any external debris like leaves or dust and ensure they are cleaned thoroughly. Place the new spark plug into the spark plug hole, hand-tighten it a few turns, and then use the socket to tighten it further. Install the removed high-voltage wires according to the firing order, and then secure the cover plate.
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