How Often to Change Your Spark Plugs
If you want to keep your vehicle running smoothly, routine automotive maintenance is a must. This includes changing spark plugs at the proper interval, but how often do you change spark plugs? While experts generally recommend replacing spark plugs every 30,000 miles, it can vary depending on the make and model you drive around Jacksonville. There may also be different recommendations from the automaker, which can be found in your owner’s manual. Learn more about when to change spark plugs and why this task is necessary with Greenway Nissan of Brunswick.
When Do I Change Spark Plugs?
What is the purpose of spark plugs? These tiny components are part of the ignition system, and they work by moving the high voltage current from the ignition coil to ignite the combustion chamber when you start the vehicle. You may notice a couple of warning signs if your spark plugs are not functioning properly. These signals can include:
- Slow or no start
- Engine misfires
- Engine running rough
- Rough idling
- Poor acceleration
- High fuel consumption
Why Do I Need to Change Spark Plugs?
Not only can changing your spark plugs prevent the issues mentioned above, there are also additional benefits of keeping up with this simple task.
- Improved fuel economy – Having a worn out spark plug can reduce your fuel economy by as much as 30%. Spend less time and money at the pump with properly functioning spark plugs.
- Consistent combustion system – Spark plugs allow for the continuous production of combustion and allow your vehicle to perform as the automaker intended.
- Your Vehicle Starts Smoothly – When your spark plugs are performing as they should, your vehicle will start effortlessly.
- Less harmful emissions – Replacing your vehicle’s spark plugs can help your vehicle run as efficiently as possible and also improve your emissions.
Turn to Greenway Nissan of Brunswick for Expert Automotive Maintenance
Still wondering, When do I change spark plugs?” The team at Greenway Nissan of Brunswick would be more than happy to take a look at your vehicle to see if your spark plugs are in need of replacement. Set up an appointment today, or contact us with any questions.

3 Months Interest free
Sunbit
More From Greenway Nissan of Brunswick
The 2026 Nissan Leaf: A Bold Step Forward in Electric Mobility
The all-new 2026 Nissan Leaf marks a major transformation for one of the world’s most recognized electric vehicles. Now redesigned from the ground up, the Leaf transitions from a compact hatchback to a sleek electric crossover, offering improved performance, a longer range, and cutting-edge technology. At Greenway Nissan of Brunswick, we are proud to bring…
Top Off Your Washer Fluid at Greenway Nissan Brunswick
Keeping your windshield clean is more than just about appearances — it’s about safety. A dirty windshield can obstruct your vision, especially when glare from the sun or headlights hits dust, salt, or road grime. One of the simplest ways to maintain visibility is to ensure your windshield washer fluid is always topped off and…
Signs You Need a Wheel Alignment | Nissan Certified
Your car’s performance, safety, and fuel efficiency all rely on one critical but often overlooked service: wheel alignment. Over time, even normal driving conditions can throw your wheels out of alignment. Add in Brunswick’s potholes, curbs, uneven road surfaces, and everyday wear — and your vehicle’s handling can start to suffer quickly. At Greenway Nissan…
Print