Analyze my spark plugs NGK G-Power

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Jun 14, 2010
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- Came off a 2001 Acura integra 5spd.
- 32k miles on these plugs. 75/25-highway/city

I replaced these with g-power again. Gapped precisely to .044 and torqued to 15ft pd. I got them for nearly free after rebates. And as for performance/fuel mileage, i felt no difference between these and iridium and long life platinums.

i think the black stuff between the threads is anti-seize. I didn't use any this time because ngk says it is not necessary. What do you think about pushing these g-power to 40k mile change intervals?

From left to right is cylinder 4-3-2-1

photo1_zps66e4f033.jpg
 
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