Are you wondering how often to change spark plugs in your new Toyota vehicle? While most Toyota experts in the Cincinnati area will recommend having your spark plugs replaced every 30,000 miles, it will vary based on your specific model.
Generally, an iridium spark plug can last for 3000-4000 hours of engine runtime or up to 100,000 miles or more. While an iridium spark plug is made to last longer than platinum or copper core spark plugs, the iridium plug isn't made equal. Iridium spark plugs from various brands may have different life spans.
Spark plugs should be changed about every 30,000 miles, but you can find a more exact recommendation in your vehicle's owner's manual.
NGK gives them a life expectancy of 40-50k miles. But they have to temper their projections as driving conditions and motor modifications differ. Typically we have found you can expect 60,000 to 80,000 miles on an unaltered motor.
When To Replace Spark Plugs Quick Tips. Your owner's manual recommends when to replace spark plugs. Some require changing at 18,000 miles, some at 35,000 miles, and others at 100,000 miles. Reduced acceleration, engine misfires, and rough idling are symptoms indicating you might need new spark plugs.
OEM spark plugs are always consistent in terms of quality. When you buy OEM spark plugs, you know you're getting the exact same ones that came with your car. Aftermarket spark plugs vary widely in quality, but they're usually made with lower grade materials. They're also commonly produced with poor workmanship.
In most cases, you'll see a noticeable difference in performance after replacing your spark plugs and wires. The engine will run smoother and faster, and the car will have better acceleration.
Conclusion on OEM Plugs
They may cost a little extra up front, but they are made precisely for your engine. Not only do they last longer, but they keep efficiency at its peak and save you hundreds at the pump.
Denso on the other hand have taken the superior hardness of Iridium and chosen to shrink the diameter of the electrode more than NGK. Because there is less material in the Denso Iridium spark (vs NGK Iridium) plug the life of a Denso Iridium Power spark plug is going to be theoretically less than an NGK iridium plug.
The estimated mileage of iridium spark plugs – depending on the thickness of the central electrode and the construction of the ground electrode – ranges from 60,000 km up to 120,000 km in the case of DENSO Super Ignition Spark Plugs, which feature a protruding ground electrode, like DENSO's Twin Tip (TT) Spark Plugs.
Most manufacturers recommend replacing spark plugs every 50,000 kilometres, but spark plug quality varies. Some last around 130,000 kilometres, while cheap plugs made of copper may last approximately 40,000 kilometres. “Extended life” spark plugs made of more resilient metals can last up to 160,000 kilometres.
60,000 miles: Once you hit 60,000 miles in your Toyota Corolla, you'll want to have your spark plugs replaced. It's important to know that you'll need to have your spark plugs replaced every 60,000 miles. You'll also need your transmission fluid and drive belts checked.
Switching to iridium spark plugs can considerably improve the mileage of the gasoline vehicles on the highway. This change comes from the fact that you now have a better ignition profile to ensure the efficient burning of the fuel.
Platinum is much harder metal than nickel alloy and has a higher melting point. Since platinum is harder, it holds its sharp edge much longer than a conventional spark plug, up to 100,000 miles. Longevity is a key advantage of platinum spark plugs.
Standard copper spark plugs last around 20,000 – 30,000 kms. The spark plugs play an important role in your engine, they produce electrical sparks that ignites the mixture of fuel and air in your engine's combustion chambers, causing the pistons to move up and down.
Considered the second-densest natural metal, iridium plugs are generally well-liked by drivers, but they have a few drawbacks, including a substantially higher cost. Extra care must also be taken during the installation of such spark plugs due to the brittle and combustible nature of iridium-coated electrodes.
In most cases your Iridium Power plugs do not need to be gapped.
Iridium spark plugs are more expensive than other platinum spark plugs, and a lot pricier than standard copper spark plugs, so are they worth the price? We believe that yes, they are, because of the numerous cost saving and efficiency benefits of iridium spark plugs that create superior value for money over time.
Lower grade spark plugs may not be built to original equipment specifications which can lead to many issues including decreased fuel mileage, poor acceleration, engine misfires and hard starts.
Investing in high-performance spark plugs is a surefire way to save some money in the long run. Better gas mileage is just the beginning. These premium spark plugs last longer than conventional plugs, which means you'll be able to go a longer time between tune-ups, keeping your maintenance costs down.
2. Make Sure the Engine Is Cold. A hot engine can burn your skin. On top of that, changing a spark plug with a warm engine head can damage the threads that hold it in place.
Also, if you drive your car more aggressively, that can cause your spark plugs to work harder and wear out faster. That's why regularly having your spark plugs checked for wear is a good idea, even if you aren't approaching the 30,000 mile mark.