Get Hours and Directions


105 State Hwy 36, Eatontown, NJ, 07724

Get Directions  Map depicting surroundiing area of Jaguar Monmouth

Dealership Info

Phone Numbers:Service Hours:
  • Mon - Sat7:30 AM - 5:00 PM
  • SunClosed
Sales Hours:
  • Mon - Thu9:00 AM - 7:00 PM
  • Fri9:00 AM - 6:00 PM
  • Sat9:00 AM - 5:00 PM
  • SunClosed
Parts Hours:
  • Mon - Sat7:30 AM - 5:00 PM
  • SunClosed

How Often to Change Your Spark Plugs

row of spark plugs


Spark plugs generally need to be changed at least once every 30,000 miles. If you want to know exactly how often to change your spark plugs, we recommend that you check your owner’s manual or reach out to our service team today. After all, no two vehicles are exactly alike! Read on to learn the signs of dying spark plugs and find out why these small components are so essential.

When Do You Change Spark Plugs? 

For most Rumson and Colts Neck drivers, that 30,000-mile interval will translate to roughly two or three years on the road. So if it’s been a couple years since your last spark plug replacement, it’s a good idea to schedule service today.

With that said, there are several tell-tale signs of bad or dying spark plugs that discerning drivers will want to watch out for:

  • Slow or no start
  • Engine misfire
  • Engine is running rough
  • Rough idling
  • Poor acceleration
  • High fuel consumption

Interested in replacing your spark plugs at home? We can set you up with approved replacement spark plugs at our parts department. Take advantage of our current parts specials to secure a great price.

What Do Spark Plugs Do?

You change your oil on schedule and you always rotate your tires, so why should you worry about your spark plugs? These small but essential components play a very important role:

  • Spark plugs create the charge that allows your engine to start, putting your pistons in motion.
  • As you drive, your spark plugs ignite the combination of fuel and air that enters each piston’s chamber with every rotation. This spark creates the explosion that is harnessed by your engine in order to move your vehicle forward.

Benefits of Changing Your Spark Plugs

You’ve already seen some of the issues that can develop if you don’t know how often to change your spark plugs, so it shouldn’t be surprising to learn that there are exciting benefits that come with changing spark plugs on schedule. These include:

  • Increased Fuel Economy: Worn-out spark plugs can reduce your fuel economy by up to 30%, and replacing your spark plugs can help you save money on every trip.
  • Smoother Starts, Smoother Combustion: Engines are high-precision machines, and when your spark plugs work properly, you can reduce the risk of damage or accelerated wear with each combustion cycle.
  • Cleaner Emissions: Better gas mileage is one side of the equation, and cleaner emissions is the other! When your spark plugs are working properly, you can burn fuel with less waste.

Schedule Spark Plug Replacement at Jaguar Monmouth

If you’re planning to schedule service at our dealership, start exploring our service specials today! Interested in learning more about vehicle care? Start browsing through our service guides from your home in Eatontown or Red Bank.

More from Jaguar Monmouth

  • 2023 Jaguar F-TYPE Interior

      Offering nothing less than a supercharged V8 and a classy cockpit that’s enhanced by hand-stitched accents and chrome trim, the 2023 Jaguar F-TYPE is the quintessential Jaguar sports car. Below, we’ve outlined what Rumson drivers want to know before stepping into the cabin. Explore the Jaguar F-TYPE interior dimensions, cargo space, and available appointments,…

  • 2023 Jaguar F-TYPE Configurations

      Which of the various 2023 Jaguar F-TYPE configurations will you choose? With both coupe and convertible formats and three unique F-TYPE trim levels, there is certainly no shortage of options. Find the best model for you at Jaguar Monmouth near Rumson. Continue Your Jaguar ResearchContact Us Jaguar F-TYPE Trim Levels: Price Discover the price of…

  • 2023 Jaguar F-TYPE R 0-60 Time & Top Speed

      The 2023 Jaguar F-TYPE R 0–60 times and top speed specs put this celebrated sports car’s prowess on full display—but how fast is a Jaguar F-TYPE R, exactly? Here, at the range-topping trim level, the F-TYPE can fly from 0 to 60 in as little as 3.5 seconds. Moreover, the Jaguar F-TYPE R top…

Jaguar Monmouth 39.9174056, -74.0794598.