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sparkplugs?

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Old 09-14-2012, 04:50 PM
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sparkplugs?
hello all.
my 2008 has got 50,000 miles on it now and i was thinking about changing the plugs on it.what brand would be the best for my 2.4 engine? any pros and cons?
thanks
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Old 09-14-2012, 05:23 PM
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the AC Delcos , they work the best and last the longest 100,000 miles , I have 2 2.2 litre GM's and both love the Delcos and not so much Bosch or NGK's
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Old 09-14-2012, 07:33 PM
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Probably not needed to change plugs right now. Should be able to go to 100,000. But it can't hurt anything to change them. I'd stick with delco's.
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Old 09-14-2012, 10:26 PM
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Originally Posted by Oldblue
the AC Delcos , they work the best and last the longest 100,000 miles , I have 2 2.2 litre GM's and both love the Delcos and not so much Bosch or NGK's
X 2...
I pulled my 2.4 plugs @ around 20K just to see.. Nice & clean, but gaps were not all the same. That has long ago been corrected.. (needless to say).

By all means AVOID 'pulstar' spark plugs.
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Old 09-15-2012, 03:13 PM
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^^^^^^^^That's funny, Sleeper^^^^^^^

Don't think you need to say why (and I thought about using the same reply)
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Old 09-15-2012, 06:51 PM
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I bought my HHR a lease turn in 32,000 miles changed to the E 3 plugs, a lot of HYPE, had 20,000 missfires and poor performance changed back to new Delcos Ird. now at 58,432 miles runs great.
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Old 09-15-2012, 07:03 PM
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I changed mine out at 62,000 miles because the last car that I owned the 100,000 mile were shot at 60,000. The plugs out of the HHR looked good, but they are a cheap insurance to change.
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Old 09-16-2012, 12:26 AM
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Originally Posted by Snoopy
^^^^^^^^That's funny, Sleeper^^^^^^^

Don't think you need to say why (and I thought about using the same reply)
Yes Snoopy, I suppose that would be helpful info for avoiding pulstar...

https://www.chevyhhr.net/forums/problems-service-repairs-42/2l-engine-blown-42797/
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Old 09-16-2012, 11:14 AM
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Its my understanding that you don't gap the plugs scrapes off the Iridium or how ever you spell it.
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Old 09-16-2012, 12:22 PM
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OEM Delco for me. Works great.

jbman: Iridium plugs gap fine if you don't touch the electrode when you do it. NGK site recommends not to gap, but says with precautions that it should gap fine.
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