A Comprehensive Guide to Nissan Spark Plugs

A spark plug is a pretty simple part, but it’s a key player in making your motor run smoothly. Spark plugs go bad after about 50,000 miles and will need to be replaced as soon as possible. That’s why it’s important that, as a Nissan owner, you should be aware of:

  • What spark plugs are
  • The symptoms of spark plug failure
  • How to replace a spark plug

This guide has all the information you need in one place.

What are Spark Plugs and How do They Work?

Stacked plugs

The quality of the materials and components is a large factor that determines how long a spark plug will last and how well it will perform.

In every internal combustion engine, there’s a set of spark plugs. They’re small tube-shaped electrical parts that ignite the fuel/air mixture in the cylinder. This article goes into more detail about spark plugs and how they work.

How to Check Your Spark Plugs to See if One of Them is Bad

When a spark plug goes bad, your engine’s performance and fuel economy suffer. That’s why we recommend inspecting your spark plugs as soon as you notice the symptoms of a bad spark plug (listed here). While inspecting your spark plugs, look for excessive erosion, a cracked porcelain housing, and oily or sooty deposits.

If you want a list of steps on accessing your spark plugs and inspecting them, check out this guide.

OEM or Aftermarket?

When it’s time to replace spark plugs, it’s common for car owners to wonder if aftermarket spark plugs are even worth the investment. If you ask us, they’re not. OEM spark plugs deliver a lot more value than aftermarket ones do because they’re built so much better in terms of:

  • Quality
  • Fitment
  • Resistance
  • Electrode design and shape

This article goes into more detail about how important it is to get OEM spark plugs instead of aftermarket.

How to Replace a Spark Plug

Before taking your Nissan to a shop, take a look at this tutorial to see how easy it is to replace the spark plugs yourself. You can replace the spark plugs in your Nissan between 30-60 minutes, depending on your level of expertise. Basically, you would just need to remove the engine cover, ignition coil, and spark plug before putting the new spark plug in.

Got any spark plug related questions that weren’t addressed in this guide? Please contact us for assistance.