NGK says choosing the correct spark plug isn’t difficult, because it has already done the hard work

While many spark plug suppliers recommend a single part number for a variety of vehicles, NGK says it knows that this “one size fits all” approach compromises performance.
“Any manufacturer who still believes they can produce a spark plug to suit multiple applications is living in the dark ages,” NGK Spark Plug Australia Senior Product Manager, James Filshie, said.
“This old school type of thinking disregards advancements in modern engine evolution and can compromise precision engine output, reliability, and fuel efficiency.”
NGK says that when spark plugs are generic, important attributes are often compromised and this can have a big effect on performance and longevity.
“Our research has found that installing a spark plug that is not specifically designed for the engine in which it is being installed can result in some pretty serious side effects, the biggest of which is the heat range,” James said.
“If the spark plug is too cold then carbon fouling can become a problem, while if the spark plug is too hot, pre-ignition can occur and that can cause serious engine damage.”
In addition to heat range, there are a number of attributes which can impact the vehicle when a spark plug is ‘commonised,’ including Centre Electrode Projection length, number of ground electrodes, ground electrode design and Double Fine Electrode (DFE) design.
“To assist mechanics and automotive technicians to quickly and easily identify common spark plug issues, we have developed a series of short videos that you can check out on our website,” James said.

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