OEM Spark Plug Buyer's Guide

If your vehicle has an internal combustion (gasoline) engine, it has a set of spark plugs. As a car owner, you want to know as much as you can about spark plugs. Most spark plugs need regular maintenance. Some last 100,000 miles or more, but most last only 20K-40K miles.

If you're looking for a one-stop guide on spark plugs, you came to the right place. Read on to learn everything you need to know about spark plugs.

What Are Spark Plugs?

Spark plugs replace

First things first. Let's talk about what spark plugs are. If you could look into each combustion chamber, you'd find a spark plug. A spark plug is a small tube-shaped part. It sparks the fuel mixture in your engine. Spark plugs are what keeps the engine running. This post has a more thorough explanation of what spark plugs and how they work.

How To Know If You Have Bad Spark Plugs

Spark plugs don't last forever. Once your spark plugs go bad, you'll know. You'll experience some of these symptoms:

  • Misfiring
  • Trouble starting your engine
  • Rough, jittery idle
  • Inconsistent engine performance (hesitation and surging, for example)
  • Poor fuel economy
  • Sluggish acceleration

You don't need to bring your car to the shop to confirm that your spark plugs are bad. You can diagnose the issue right at home by giving each spark plug a visual inspection. This guide will walk you through the process.

How To Replace Your Spark Plugs

Have you found bad spark plugs in your engine? Skip the shop and replace them with this tutorial! The process involves going into each combustion chamber, removing the old spark plug, and then screwing in the new spark plug. It's a pretty straightforward process.

OEM Vs. Aftermarket Spark Plugs

Before you can replace your spark plugs, you need to order replacement spark plugs. When shopping for replacement spark plugs, you're faced with two choices:

  1. OEM spark plugs
  2. Aftermarket spark plugs

This comparison guide offers a lot of insight into each option. It concludes that OEM spark plugs offer so much more value than aftermarket ones because:

  • OEM spark plugs come with the right design and tolerances
  • OEM spark plugs are built with high quality materials
  • Many automakers offer a comprehensive warranty for their OEM parts

Do you have any questions that weren't answered in this buyer's guide? You're welcome to contact us!