They require less maintenance and provide a more stable and consistent performance than a Denso. On the other hand, NGK plugs will be a standard replacement for their platinum alternatives. For this reason, Denso plugs won’t last longer than NGK units but they will be better at producing powerful sparks. The electrode’s diameter in these plugs shrinks more than an NGK. The iridium used in them has a superior hardness. It is hard to pull out a winner in the NGK vs Denso debate since both are iridium spark plugs and offer almost similar performance.ĭenso plugs are installed on almost every automobile model manufactured in Japan. Understanding a Diesel Engine Mechanism without a Spark Plug.Learn to Read the Spark Plug Colors with This Guide!.
In a word, iridium spark plugs last longer than other types and their performance is better than the platinum units. They also need less maintenance as checking their condition at every 3 to 6 months is enough. Unlike the platinum models, they are stable, don’t grow gap over time, and don’t create extra stress on the ignition system. On the other hand, they are also a better option than platinum plugs in terms of consistency and longevity. When a copper plug lasts for around 20,000 miles, the average lifespan of an iridium plug is 40,000 – 60,000 miles. Iridium spark plugs are not the best in terms of performance but nothing can beat their longevity. It is also 4-5 times costlier than platinum. The metal is much less conductive than copper but lasts longer and work at a low temperature.
But, which one will have the edge in a Denso vs NGK comparison? Denso vs NGK: What Type of Spark Plugs Are They?īefore diving deep into the discussion of Denso vs NGK, you should know their type and specific features to see if they fit your need.īoth the types are iridium spark plugs. Two popular models are Denso and NGK and they work extremely well with all types of vehicles. There are a couple of spark plug models in the market. A car needs good-quality and fully-functioning plugs for running the engine. Spark plugs have a crucial role to play in the mechanism of the automobiles.
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