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Old 08-05-2012, 08:05 PM   #1
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E-3 spark plugs.

I would like to replace the plugs in my 2000 wrangler 4.0L. Does anyone have any feed back on the E3 spark plugs? I've heard nothing but good things about them. ???? Are they worth it?

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Old 08-05-2012, 09:54 PM   #2
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Don't do it.

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Old 08-06-2012, 07:59 PM   #3
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10-4. Any recmondations?
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Old 08-06-2012, 08:10 PM   #4
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I just went to the dealership and got NGK's. Some of the older TJ's had champions. Several threads on here about autolite plugs. Gap is 35 no matter what brand, make sure and check them. Mine ranged from 30-45 and were from the dealer. Just use OEM and change every 30-40 thousand and you'll be fine.
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Old 08-06-2012, 09:18 PM   #5
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I put in the iridiums by champion.. I did notice a slight difference.
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Old 08-06-2012, 11:16 PM   #6
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I use the autolite iridiumd and noticed a difference. Runs another and fuel economy went up, I'm getting 17 mixed 80/20 city/highway mix not sure of highway yet but I'm betting around 22
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Old 03-02-2013, 03:38 PM   #7
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Quote:
Originally Posted by Tdog02 View Post
Don't do it.
Why not?
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Old 03-02-2013, 03:41 PM   #8
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Originally Posted by Tdog02 View Post
I just went to the dealership and got NGK's. Some of the older TJ's had champions. Several threads on here about autolite plugs. Gap is 35 no matter what brand, make sure and check them. Mine ranged from 30-45 and were from the dealer. Just use OEM and change every 30-40 thousand and you'll be fine.
X2 on the Champs, my TJ is an 2001. First thing I did was change them when I got my jeep last summer.
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Old 03-02-2013, 03:45 PM   #9
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Originally Posted by rick700raptor View Post
Why not?
I think some brands of vehicles are picky, and I believe wranglers are. THO I did use E3's for a 2000 Mazda b3000 pickup before I sold it a few months later, didnt notice anything wrong and some fuel efficiency but not much.

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