What sparkplugs are you guys using.

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Mudsport96

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I was avoiding this thread because i havent put that many miles on my tahoe since i bought it from the dealership. But, i dont know for a fact that they did plugs on it now that i think about it. Guess that goes on the list for when it warms up again.
 

JonnyTahoe

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I was avoiding this thread because i havent put that many miles on my tahoe since i bought it from the dealership. But, i dont know for a fact that they did plugs on it now that i think about it. Guess that goes on the list for when it warms up again.
So about two more months.
 

Robbler112

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Ngk iridium I've used 4 times in my 07.. Delco's have been out of stock totally or 4 or 5 count left.. NGK have given me no problem's.
 

SnowDrifter

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NGK Iridium. Don't really have anything to say on the things other than they work.

Get some feeler gauges to gap though. The little coin looking gap thing you can get at the register for 2 bucks doesn't work worth a shit IMO. And no, they aren't gapped out of the package. Spec 'em. Just don't scuff the center electrode. If you need to increase the gap, scoot the ground electrode like you would a bottle opener - not by prying between it and the positive pin
 

89Suburban

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AC Delco's, and I jumped a heat range to try and help with the plug fouling on #6.
 

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