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Sparkplugs.com -> RE: Sparkplugs.com specials (1/17/2007 11:38:02 AM)
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Reason I asked is the technical thread I directed everyone to talks about multi-ground plugs. In summary, multi-ground plugs were designed for a specific engine type that requires the electrodes to be placed off to the side. because the ground strap is so short, they have to create multiple grounds because just having one would wear the plug out too fast. There's many gimics out there and plug manufacturers that push and promote multi ground plugs for all vehicles, whether the engine was created for their use or not, and their marketing even stretches so far at times as to make you think that multi ground=multi spark, which is false. Multiground plugs aren't meant to be run in engines not created for thier use. In some engines, they will run fine, but won't increase plug life by any means. In other engines, they'll run horribly.
So your talking about changing over to the CR9EK peaked my curiosity and I wondered how long the plugs were lasting as compared to the single ground. Sounds like you may have figured out that that engine runs better with a multi ground before Honda did.
Denso does make high quality products. From a technical aspect, their iridium plugs are the most technoligically advanced in the industry. But when it comes to the standard plugs, if you find a brand that works better than others in an application, stick to it - whether it happens to be the factory plug or not.
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