original plugs pulled from 05 Vibe

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OEM plugs removed today from an 05 Vibe with 59k miles.

oldplugs_1_1.jpg
 
Those plugs are rated for 100K miles. What did you put back in?
 
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they look fine, I'd put 'em back in. I still have the factory plugs in my vibe, and the gap has stayed in spec.
 
+1, +2, +3 and more as the above people say. I know people who have done more than 125K on Iridium plugs and never had a problem. At $10+ per plug, let them tell you when to change them.
 
If you put 'em back in I would use new gaskets though. Ive had plugs back out when re-using the crush gasket. Many chain parts stores dont sell plug gaskets anymore these days ;(
 
I would use NGK copper, the one that cost $1.99, it made best performing, just dont last long, around 30k miles. I use it on my mustang gt and both camaro z28 ( yes I own 2 ). A month ago I bought a camaro z28, and the owner put in denso Iridiums, I take it off and put in ngk tr55 copper, call pull to red line with no more miss like the iridiums.
 
At least one spark plug shows a wedge shape wore off the ground strap. Install new plugs.

edit, two plugs that I can see are wedge shaped on the ground strap.
 
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That wedge was probably there when manufactured. It means nothing.
It is the iridium TIP inside that is important.
And they are in great shape.
 
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