e3 spark plugs

i did a little research on the internet and these plugs are the next great gas saving,energy efficient thing????? ordered a set at amazon.com,we shall see. :roll:

scam...

Install iridiums and then you don't have to worry about them for over 100,000 miles.

E3's are junk. Good for a lawn mower and that's about it. NGK Iridium's would serve you well.

I'd agree with the others. I've seen dyno testing showing some plugs are better, but compared to what? The OEM plug thats been on the car for 50k miles? I think any new plugs will be better than old worn plugs.

I tested (got 'em free) some Pulstar plugs a while ago. No noticeable difference in power or mileage. One also went bad after approximately 1 year, so I threw my old plugs back in.

Last I heard, but haven't checked up on it, E3 isn't even offering/advertising the "DiamondFire" plug anymore?

They don't make any claims of increased FE or Power that I can see (anymore), and there's likely a good reason for that.

http://www.e3sparkplugs.com/ :shock:5yr-100,000 miles

The OEM NGK V-groove are like 2 bucks a piece. They work fine and I change um out every 30K. Very simple to access, and I can change them for less than an oil change.

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Originally Posted by dleebold

http://www.e3sparkplugs.com/ :shock:5yr-100,000 miles

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With their failure rate, I wouldn't trust them that long.

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Originally Posted by AveoRob

The OEM NGK V-groove are like 2 bucks a piece. They work fine and I change um out every 30K. Very simple to access, and I can change them for less than an oil change.

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LOL - I just pulled plugs from my F150 (Gerald) that must've been in there for 60k+ miles. They were standard copper core autolites, and they still ran the engine, even with .100+ gaps. (I just bought the truck from a girl who couldn't reach the oil dipstick... Surely, she didn't do anything to it.)

I'm not really a fan of changing spark plugs for the most part. I feel that if they work, I should leave them in there. I do periodically pull them out, check/clean them, and re-check the gaps with feeler gauges.

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Originally Posted by Unidentifiable

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Originally Posted by AveoRob

The OEM NGK V-groove are like 2 bucks a piece. They work fine and I change um out every 30K. Very simple to access, and I can change them for less than an oil change.

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LOL - I just pulled plugs from my F150 (Gerald) that must've been in there for 60k+ miles. They were standard copper core autolites, and they still ran the engine, even with .100+ gaps. (I just bought the truck from a girl who couldn't reach the oil dipstick... Surely, she didn't do anything to it.)

I'm not really a fan of changing spark plugs for the most part. I feel that if they work, I should leave them in there. I do periodically pull them out, check/clean them, and re-check the gaps with feeler gauges.

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LOL! So ou think we shouldn't spark plugs now?