Engine and Exhaust

In Mercer, PA, the days when Mercer drivers changed their spark plugs every couple of years has ended. Back in the day, spark plugs really did wear out that often. A couple of things are different now...

The days when you changed your spark plugs every couple of years has ended.  Back in the day, spark plugs really did wear out that often.  A couple of things are different now.  First, ...

Question I’m confused about when I should get my spark plugs replaced.  What’s the deal? Answer Well it can be confusing because there are several types of spark plugs and some las...