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gay......dont buy into gimmicks.....
 

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WHEN it's time to change plugs, buy a name brand plug and don't screw around with gimmick plugs ( or any other engine part for that mater). Study after study has shown that plugs with gimmicky electrodes and parts making other claims, are just that --unfounded CLAIMS! You should need plugs with todays engine until 80-100k miles. Save your money and yourself troubles, stay away from that kind of stuff.
 

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If they provided ANY benefit, wouldn't you think that ALL manufacturers would include them as original equimpment ? If if is too good to be true, then it is too good to be true.
 

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When your Terrain get around 100,000 miles change the plugs with exactly the same plug you took out... Or waste your money on some gimmick plug....
 

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RIT333 said:
If they provided ANY benefit, wouldn't you think that ALL manufacturers would include them as original equimpment ? If if is too good to be true, then it is too good to be true.
NO. Manufacturers save as much as they can on parts. if the price difference between two parts is as much as .50 they will go with the cheaper option.

I have seen experiments between typical single electrode spark plugs versus the E3 diamond spark plugs and they do show that the E3 burns more of the fuel. I was always curious, and I have lots of friends who run them and did notice in increase in fuel efficiency and lower emissions (when getting smogged in CA).

Im not sure I would spring for them this early, but I dont completely discount what they can do.
 

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doesnt electricity take the path of least resistance?
im guessing its going to be 1 of the 3 electrodes?
 

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rbarrios said:
doesnt electricity take the path of least resistance?
im guessing its going to be 1 of the 3 electrodes?
Yes, but that always assures you of getting the best of 3 electrodes. So, as one gets worn, there is another that can be better. I'm still not convinced that that it'll be better than the factory plugs.
 
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