Spark plugs are critical components of any gasoline engine, but since they ignite the compressed mixture of fuel and oxygen millions of times during their lifespan, they eventually cease to fire and ...

Q: In a recent column you responded to R.W. from Minnetonka, Minn., that he should not need spark plug replacement of the platinum tipped plugs until the manufacturer recommended 60,000 miles. One ...

Fitting bigger spark plugs might sound like a recipe for improving power output, but it can have catastrophic consequences ...

I hope you can shed some light on this one. My daughter has a 1996 Jeep Cherokee with 172,000 original miles on it, then the previous owner put in a new engine and she now has 175,000 miles. A few ...