It says in the OEM shop manual not to gap iridium plugs. If the gap is off from the factory, you are supposed to swap it out for a new plug. I believe it's because the fine tips cannot withstand bending or something like that. I'm just quoting what the OEM shop manual says...It's not too hard to re-gap. Why get a new one?
thanks for everyone's response...what do you mean E3's? i personally like the copper too..Better MPG off standard old copper. Most think the plats or iridium give better mpg and hp. Not really unless you read into the fine print of how they do that.
Copper - give best mpg and hp but need to be swapped at 15k-20k to remain at the highest performance
Platinum - give less mpg and hp but keep an even level of performance for 40k-50K
Iridium - gives the least mpg and performance out of the three but will keep an even level of performance for 100K.
Coppers - $1.00-$2.50 on avg
Platinums - $2.99-$3.99 on average
Iridiums - $12-$17 on average
So it all boils down to how often you want to swap the plugs and how efficient you want them to be. I personally like the E3's since they are copper plugs with a "twist". Because they are made differently from other plugs they boast a life similar to Iridiums with a 100K warranty. I like my gas mileage and the response from the engine with E3's better than Iridiums. I swapped Iridiums out of my TL and E for these ;-).
E3's are a newer plug on the market HorsePower TV show Muscle Car did a comparison with an engine dyno with multiple plus and the E3's came out on top for best performance and MPG gains. Google E3 for more info.thanks for everyone's response...what do you mean E3's? i personally like the copper too..
I entirely disagree. Can you tell me you have honestly dyno'ed an iridium against a copper plug? The reason the car's come with iridium's are not because they are better. It is so they are maintenance free longer and the cost of maintenance looks better to potential buyers. Iridiums are ****ty plugs unless you are going to poorly maintain your vehicle in the first place. Pretty much the idiot free plugs.no no no no no. Only use the NGK Iridium (what came on your car from honda) or the denso Iridium thats it. Dont even check the gap just open the box and put them in. They will be fine, they are protected with a sleeve in the box so the gap will be fine. I bought my NGK's for $11 a piece. Dont use anything else. Dont use E3's they are all hype and only good for lawn mowers no joke.
You state all of this as though it's factual. Do you have anything that supports your claims? If you do, I'd think it would help many in making their next plug buying decision. Thanks.Better MPG off standard old copper. Most think the plats or iridium give better mpg and hp. Not really unless you read into the fine print of how they do that.
Copper - give best mpg and hp but need to be swapped at 15k-20k to remain at the highest performance
Platinum - give less mpg and hp but keep an even level of performance for 40k-50K
Iridium - gives the least mpg and performance out of the three but will keep an even level of performance for 100K.
Coppers - $1.00-$2.50 on avg
Platinums - $2.99-$3.99 on average
Iridiums - $12-$17 on average
So it all boils down to how often you want to swap the plugs and how efficient you want them to be. I personally like the E3's since they are copper plugs with a "twist". Because they are made differently from other plugs they boast a life similar to Iridiums with a 100K warranty. I like my gas mileage and the response from the engine with E3's better than Iridiums. I swapped Iridiums out of my TL and E for these ;-).
Any luck finding that info to share with us?My knowledge came from workshops on this information. I will see if I can dig some up though and post it shortly.
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Did you ever start digging?My knowledge came from workshops on this information. I will see if I can dig some up though and post it shortly.
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You seem to be a subject matter expert in the area of spark plugs as well as motor oil. Could you enlighten us as to where you get your information i.e test data, studies, etc. I doubt that a large corporation like Honda Motor Company would put a ****ty spark plug in their products unless of course that is just your personal opinion.I entirely disagree. Can you tell me you have honestly dyno'ed an iridium against a copper plug? The reason the car's come with iridium's are not because they are better. It is so they are maintenance free longer and the cost of maintenance looks better to potential buyers. Iridiums are ****ty plugs unless you are going to poorly maintain your vehicle in the first place. Pretty much the idiot free plugs.
I was just saying I like E3's. The emissions test do not lie regarding these or Halo's and pushes in the EU to force similar products make sense. If the guy does not want E3's I would still prefer copper any day over the plats or iridiums.