https://www.youtube.com/watch?v=4gsX3gwnXK4
Shop for New Auto Parts at 1AAuto.com http://1aau.to/c/243/a9/spark-plugs Have you noticed a sputtering or misfiring from the engine in your car or truck? There are several things that could cause it, and in this video we are focusing on spark plugs! Can those worn out spark plugs hurt your gas mileage? In this video, Sue explains what happens when the gap of a spark plug increases, and how that might affect the gas mileage in your car or truck! If you have noticed either a rough engine, or reduced gas mileage, check out this video to find out if worn spark plugs are your problem!