Spark plugs come in many different types, but they also have many different heat ranges. Here's what that means, as well as ...

Spark plugs are vital for gas-powered cars. However, they can be subject to a strange phenomenon known as blow out. Here's ...

If you've ever seen a mechanic draw a tiny line on a spark plug before changing it, they're not performing witchcraft — they're indexing it. The idea is simple. Most standard types of spark plugs have ...