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*** How often do you change your spark plugs?? ***

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Old Mar 24, 2008, 11:23 PM
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*** How often do you change your spark plugs?? ***
I just wanted to gather some information about how often evo owners change their plugs.

evo 8 or 9 owner?

How many miles do you let go by before swapping them out?

What plugs do you use?



Any information is great and helpful. I have an evo 9 with 7500 miles over 8 months. Is it time to swap them out?

TIA guys...
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Old Mar 24, 2008, 11:26 PM
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i hope not cuz i put bout 14k on mine since the last time they were changed lol i thought they didnt have to be changed till either 30 or 60k
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Old Mar 24, 2008, 11:29 PM
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every 5k but i'm using copper
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Old Mar 24, 2008, 11:29 PM
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Every 10 to 15k on the DSM. Haven't had the Evo long enough, but I'll probably do the same. They're cheap.
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Old Mar 25, 2008, 07:00 AM
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Every 10k on the IX using OEM Iridiums.
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Old Mar 25, 2008, 07:02 AM
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I have 37k on the clock and I last changed them for the first time at 14k....I checked them last weekend and they still look good.

I use stock plugs and I might change them only cause they have been in there for almost 23k miles...
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Old Mar 25, 2008, 07:03 AM
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I haven't changed mine yet. 27K. Might do it when I do the fluids.
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Old Mar 25, 2008, 07:05 AM
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Every 5-7K whenever they start fouling out, I go ahead and change em.
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Old Mar 25, 2008, 07:11 AM
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Every 15k Iridiums
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Old Mar 25, 2008, 07:11 AM
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every 10k on my IX
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Old Mar 25, 2008, 07:33 AM
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Every 12K, well at least my car told me to do it then or I would of went untill at least 30K. Carbon fouled
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Old Mar 25, 2008, 07:37 AM
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16k on my car, changed them about 5 times (lol. although that was because of issues with the car)

normal change should be about 5k miles using copper, theres no reason not to change them with how cheap they are!
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Old Mar 25, 2008, 07:56 AM
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33k, i think i should change them about now...hehe
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Old Mar 25, 2008, 07:58 AM
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I use NGK coppers so I change them every oil change, which is every 5k miles since I use amsoil. evo 8 btw
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Old Mar 25, 2008, 07:59 AM
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Just put coppers in last oil change so probably again soon...

Sekula (or anyone with the copper NGK's): what gap are you using?
Last edited by ribbie78; Mar 25, 2008 at 08:01 AM.
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