Frequently Asked Questions
Is NGK a good brand of spark plug?
Yes. NGK has been manufacturing spark plugs since the 1930s and is widely used across original-equipment and aftermarket applications. For VAG owners, there’s a broad choice covering standard road cars as well as more specialised tuned applications.
Is NGK a Japanese brand?
Yes. The company behind NGK spark plugs was established in Japan in 1936 and remains headquartered in Nagoya. Its English corporate name changed from NGK SPARK PLUG CO., LTD. to Niterra Co., Ltd. in 2023, while NGK continues to be used as the spark plug brand.
Which NGK plugs are the best?
There isn’t one NGK plug that’s right for every engine. The correct choice depends on the engine, factory specification and any tuning already carried out. An EA888 Gen 3 can require a different plug from an earlier EA888 or EA113, while some tuned applications specify a colder heat range.
What’s the difference between NGK spark plugs?
NGK plugs vary in electrode material, design and heat range. Iridium and platinum are used in different plug designs for their wear and performance characteristics, while heat range determines how quickly the firing end transfers heat into the cylinder head.
How do I know which NGK spark plug fits my VAG engine?
Start with the exact engine generation and engine code rather than relying on the vehicle model alone. For a tuned car, check the plug requirements supplied by the tuner or software manufacturer as well. A colder plug may be specified for some applications, but it shouldn’t be treated as an automatic upgrade for every tuned engine.