The many spark plug types are typically named after precious metals used in their center electrode, ground electrode, or both. Copper plugs are the most affordable and the most basic while iridium ...

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 ...

We may receive a commission on purchases made from links. A spark plug isn't just one standard item, and the market is full of different types, materials, and designs. They're each made to run best ...

How long spark plugs last varies with different cars and different types of spark plugs. Older cars often had to have their spark plugs replaced every 5,000 to 10,000 miles, while some newer cars — ...