Spark plugs are one of the most important components in your engine. If they are fouled, corroded, or improperly gapped, they can fire inconsistently causing decreased fuel efficiency, engine performance, and rough idle. All Hyundai Spark Plugs are pregapped, so simply pull them out of the box and install them! Hyundai recommends changing these spark plugs every 90,000 miles.
Spark plugs are one of the most important components in your engine. If they are fouled, corroded, or improperly gapped, they can fire inconsistently causing decreased fuel efficiency, engine performance, and rough idle. All...
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