Loading

Which spark plug is better, DENSO or NGK?

When it comes to spark plugs, two of the most popular and trusted brands are DENSO and NGK. Both are renowned for their high-quality products and are widely used in the automotive industry. However, the question remains: which one is the better choice? In this article, we'll explore the key differences between DENSO and NGK spark plugs to help you make an informed decision.


Spark Plug Design and Performance


DENSO and NGK spark plugs are designed with slightly different approaches. DENSO spark plugs are known for their innovative design, featuring a tapered ground electrode that helps to improve the ignitability of the air-fuel mixture. This design, combined with DENSO's advanced manufacturing processes, results in a spark plug that delivers a more consistent and reliable spark. NGK spark plugs, on the other hand, are renowned for their durability and long service life. They often feature a copper core that helps to dissipate heat more effectively, allowing the spark plug to withstand higher temperatures and last longer.


In terms of performance, both DENSO and NGK spark plugs are capable of delivering excellent results. However, the specific needs of your vehicle and driving conditions may determine which brand is the better choice. For example, if you're looking for a spark plug that can handle high-performance or high-revving engines, DENSO may be the better option due to its improved ignitability. On the other hand, if you're looking for a spark plug that can withstand the rigors of heavy-duty use or extreme temperatures, NGK may be the more suitable choice.p>

Compatibility and Availability


Both DENSO and NGK spark plugs are widely available and compatible with a wide range of vehicles. However, it's important to ensure that you select the correct spark plug for your specific make, model, and engine. Consulting your vehicle's owner's manual or speaking with a qualified mechanic can help you determine the best spark plug for your needs.


In terms of availability, both DENSO and NGK spark plugs can be found at most automotive parts stores and online retailers. However, the selection and pricing may vary depending on your location and the specific model you're looking for.


Cost and Warranty


When it comes to cost, DENSO and NGK spark plugs are generally comparable, with both brands offering a range of options at different price points. However, it's worth noting that the higher-end models from both brands may come with a slightly higher price tag.p>

In terms of warranty, both DENSO and NGK offer excellent coverage for their spark plugs. DENSO, for example, provides a limited lifetime warranty on their spark plugs, while NGK offers a 1-year warranty on their products. This can provide added peace of mind and protection for your investment.p>

Conclusion


In the end, the choice between DENSO and NGK spark plugs largely comes down to your specific needs and preferences. Both brands are known for their high-quality products and excellent performance, but the specific design and features of each may make one a better fit for your vehicle and driving conditions. By considering factors such as spark plug design, performance, compatibility, cost, and warranty, you can make an informed decision and ensure that your vehicle is equipped with the best possible spark plugs.

How many miles are DENSO spark plugs good for?


Typically we have found you can expect to get 60,000 to 80,000 miles on an unaltered motor. However, because gradual wear will "round-off" firing points over time, the concentrated firing power and voltage requirement benefits will be reduced. For this reason, Denso advises replacement after 30,000 miles.



Are NGK or DENSO spark plugs better?


NGK Plugs are better. They have better threads and the Denso have been known to fall apart in Turbo applications. I went thru this when I replaced the plugs in my Hondas.



How many miles do NGK spark plugs last?


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.



Which spark plugs last the longest?


Thanks to its strength, iridium spark plugs can last up to 25% longer than comparable platinum spark plugs. Iridium spark plugs feature a fine wire center electrode that is designed to conduct electrical energy better and increase firing efficiency.



Is there a downside to iridium spark plugs?


Cons of Iridium Spark Plugs
The best models use two or three layers of iridium on the central electrode, whereas the cheapest models may use only one thin layer. These can be prone to cracks and impact damage, so for the best results, always invest in a double or triple coated spark plug.



Are Denso spark plugs made in China?


All DENSO Spark Plugs are manufactured in Japan, Indonesia, China and USA. If a part claims to be a DENSO component but has been manufactured outside of these areas, then it is not genuine. Counterfeit spark plugs may also have subtle differences in the logo placement.



Why are ngk spark plugs better?


NGK spark plugs feature trivalent plating. This silver or chrome-colored finish on the threads is designed to provide corrosion resistance against moisture and chemicals. The coating also acts as a release agent during spark plug removal.



Do NGK spark plugs add horsepower?


Their internal construction is no different (in NGK's case, as all of our spark plugs must conform to the same level of quality controls) than most standard spark plugs. NGK as a company tries to stay clear of saying that a racing spark plug (or ANY spark plug) will give you large gains in horsepower.



What is the number 1 spark plug?


The number one spark plug is always found in the number one cylinder of the engine (or the number one *rotor* in a Wankel). Look at the end of the engine closest to the accessory drive. From there, locating cylinder one is easy for any inline configuration.



What is the highest quality spark plug?


Platinum spark plugs boast longevity and resistance to fouling. Since platinum is harder, it holds its sharp edge much longer than a conventional spark plug, up to 100,000 miles. Platinum spark plugs come in two varieties - single and double platinum.


Kevin's Auto

Kevin Bennett

Company Owner

Kevin Bennet is the founder and owner of Kevin's Autos, a leading automotive service provider in Australia. With a deep commitment to customer satisfaction and years of industry expertise, Kevin uses his blog to answer the most common questions posed by his customers. From maintenance tips to troubleshooting advice, Kevin's articles are designed to empower drivers with the knowledge they need to keep their vehicles running smoothly and safely.