Do spark plug brands matter?

Although many motorists and technicians prefer to stick with the same brand when replacing spark plugs, there's nothing on the label that limits a particular brand of plug to a particular vehicle make or model.

Does the quality of spark plug matter?

If you select lower grade spark plugs, you could be missing out on technological advancements that lead to longer life and improved performance. Lesser quality spark plugs can show signs of fouling sooner than premium plugs, meaning that you'll have to replace them more often.

Are all brands of spark plugs the same?

All spark plugs have the same function but there are different types that are available for different types of vehicles. This is the most common spark plug available.

Who is the best spark plug manufacturer?

• Original Equipment AC Delco : Best Spark Plug Overall.
• Denso Iridium TT : Best Overall First Runner Up.
• E3 Diamondfire : Best Performance Spark Plug.
• NGK Spark Plugs : Best Standard Spark Plug.
• Champion Copper Plus : Best Small Engine Spark Plug.

Which type of spark plug is best?

Iridium. The best spark plugs on the market boast an iridium construction. Iridium spark plugs give you even better gas mileage, performance, reliability, and longevity than double-platinum plugs.

The Best Spark Plugs in the World and Why

Do expensive spark plugs make a difference?

This would be more accurately described as “less performance loss.” Spark plugs do not increase the performance of an engine — even spark plug manufacturers are fairly forthright about that. Noble metal plugs can perform consistently and well, which helps to maintain the engineered performance of the engine.

Why are NGK spark plugs better?

Modern engines demand more power while using less fuel, shortening the life of traditional iridium and platinum spark plugs. NGK's patented ruthenium technology stands up better to wear to bring maximum durability and performance to your engine.

Is it OK to use aftermarket spark plugs?

An aftermarket spark plug could work just OK in one vehicle and cause a great loss of horsepower and fuel economy in the next vehicle.

Where are NGK plugs made?

NGK is a manufacturing company based out of Nagoya, Japan. The NGK Spark Plug manufacturing plant opened in Sissonville, West Virginia, in 1995. The Sissonville plant now produces oxygen sensors and spark plugs for internal combustion engines, along with ceramics and applicable products.

Do iridium spark plugs really make a difference?

Iridium is said to be six times harder and eight times stronger than platinum with a 700° higher melting point. Iridium spark plugs have extremely fine electrodes while retaining excellent wear characteristics. Thanks to its strength, iridium spark plugs can last up to 25% longer than comparable platinum spark plugs.

Can the wrong spark plug damage the engine?

Installing the wrong spark plug for your car will cause poor engine performance and can seriously damage your engine.

Can different spark plugs increase horsepower?

When you change your worn-out spark plug with fresh spark plugs, you'll notice a much faster engine response when driving. While spark plugs don't technically increase your engine's horsepower, they bring it back to its optimal combustion level.

Can I use platinum instead of iridium?

Platinum may be harder than copper, but iridium is the hardest among the three, and iridium spark plugs outlast platinum spark plugs by almost twice the mileage. The only issue with iridium is that it costs double the price of platinum with little improvements in performance.

What's better double platinum or iridium spark plugs?

In comparing iridium with platinum, iridium has proven to have more advantages than platinum. The strength of iridium spark plugs is capable of lasting up to 25% longer than that of platinum spark plugs. Therefore, iridium is completely better than double platinum.

Which is better copper or iridium spark plugs?

Platinum and Iridium plugs perform at a lower level than copper spark plugs, because they are less conductive and they tend to overheat. However, the overall longevity of these two types of metal is better than copper plugs. In reality, copper has the best performance of all three and the worst longevity.

What does NGK stand for?

NGK Spark Plugs was founded as a spin-off of the spark plug division of NGK Insulators. Originally, NGK supplied most of its products to Japanese automakers. In 2018 the company became a shareholder of aftermarket data firm TecAlliance. NGK stands for Nihon Gaishi kabushikigaisha, the Japanese name of NGK Insulators.

Is there fake NGK Spark Plugs?

Yes, in fact it does. NGK SPARK PLUG's Technical Service team recently became aware of cases where customers bought CR9EIX NGK spark plugs on the internet, which proved to be fake products.

Is NGK an OEM?

OE-Style Spark Plugs - NGK Spark Plugs. NGK spark plugs come standard on more vehicles in North America than any other manufacturer. The OE-style spark plug line brings that original equipment spark plug to the automotive aftermarket, delivering OE fit, form, function and performance for your engine.

Why are OEM spark plugs so expensive?

Electrode Design And Shape Is A Big Deal

Most OEM spark plugs have carefully designed electrodes that are ground into a very specific shape. This shaping is costly, as it adds complexity and time to the manufacturing process.

Do spark plugs have to match?

Misfiring due to excessive heat, quenching, increased fuel consumption and even engine failure can occur from the use of incorrect or mismatched spark plugs, so it's best to replace all of your spark plugs at the same time, and with the correct type of spark plug, to ensure smooth and consistent operation.

Should you grease spark plugs?

Metal shell stretch changes the heat rating of the spark plug and can result in serious engine damage caused by pre-ignition. Do not use anti-seize or lubricant on NGK spark plugs. It is completely unnecessary and can be detrimental.

Which is better Denso iridium or NGK iridium?

Denso plugs are installed on almost every automobile model manufactured in Japan. The iridium used in them has a superior hardness. The electrode's diameter in these plugs shrinks more than an NGK. For this reason, Denso plugs won't last longer than NGK units but they will be better at producing powerful sparks.

Is it better to change spark plugs hot or cold?

You'll want to wait at least 30 minutes before installing new spark plugs. That should give the engine adequate time to cool down.

Why are iridium spark plugs so expensive?

Iridium spark plugs cost more than other varieties because of the scarcity of iridium itself. Iridium is an extremely rare metal that is only mined in certain locations, and global supply has been severely affected by travel and processing restrictions during the pandemic.