What does changing your spark plugs do?
What does changing your spark plugs do? Benefits of Changing Your Spark Plugs Improved fuel economy – Having a worn-out spark plug can reduce your fuel economy by as much as 30%. Less harmful emissions – Replacing your vehicle's spark plugs will help your vehicle operate more efficiently as well as improve your emissions. How do you remove a boot from a spark plug? Squirt a liberal amount of spark plug boot grease into the boot then install the boot onto the spark plug. This dielectric grease prevents high voltage “flashovers” (voltage leaking out of the boot to ground) and...