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 ...
We may receive a commission on purchases made from links. Most manufacturers suggest spark plugs (and wires, if you're being thorough) be replaced between 30,000 and 100,000 miles depending on the ...
Gas-powered internal combustion engines need spark plugs to (literally) ignite and complete the combustion stroke, enabling the motor to produce power. They may seem unusual to the untrained eye, but ...
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