The Auto Wire on MSN
Your spark plugs could still be fine at 100,000 miles. Here's how to know before you pay to replace them anyway
Somewhere along the way, "100,000 miles" became the universal spark plug expiration date. People repeat it so often that they ...
Spark plugs play a highly significant role in the overall functioning of a vehicle. Without well-functioning spark plugs, a vehicle may not operate properly or at all. This article explains all ...
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