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Old 12-04-2006, 04:46 AM   #1
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Just wondering if anybody has tried these in their 3800 N/A.
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Old 12-04-2006, 12:22 PM   #2
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i don't have the Autolite iridium plugs.
but i have over 75,000 miles on my NGK Iridium plugs(TR55-ix)
i would not go back to the standard plug ever again.

ROD
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Old 12-04-2006, 01:22 PM   #3
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All I know about spark plugs is if it ain't broke, don't fix it. Those platinum plugs make your car run like crap, and I bet those iridium plugs are the same. Those plugs are made for MUCH new cars that were designed for those plugs, ie European cars, Japanese cars, etc.
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Old 12-04-2006, 01:51 PM   #4
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who'* talking about platinum plugs, Iridium is not platinum. you would lose that bet
also my gas mileage went up and has stayed up for 75,000 miles
its not if it aint broke, dont fix it. its it aint broke, but i can make it better.

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Old 12-04-2006, 01:56 PM   #5
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The power difference will barely be noticable. I'd play it safe, stick with the regulars.
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Old 12-04-2006, 02:13 PM   #6
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Quote:
Originally Posted by petraman
The power difference will barely be noticable. I'd play it safe, stick with the regulars.
Pete, You are quite wrong about not changing plugs at the normal intervals for the plug type you are using etc. Plugs should not be a "not overly broken, don't fix item"

An Iridium plug is a good durable plug meant to last. Copper based plugs are also good, but don't have the lifespan of an Iridium. Copper needs to be changed many times before an Iridium. It was my experience
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Old 12-04-2006, 02:18 PM   #7
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Really? REALLY!?!?!
wow....
Willie and I both agreed on this, and I wouldn't have put my rep (lmao) on the line if I didn't know 100% what they did. I just need to keep my big mouth shut and let the gearheads do the talking, lmao.
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Old 12-04-2006, 02:19 PM   #8
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Quote:
Originally Posted by BillBoost37
Quote:
Originally Posted by petraman
The power difference will barely be noticable. I'd play it safe, stick with the regulars.
Pete, You are quite wrong about not changing plugs at the normal intervals for the plug type you are using etc.
I never said anything about not changing the plugs. I change my plugs at regular intervals and totally agree that people should change theirs regularly.
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Old 12-04-2006, 02:20 PM   #9
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you take 3 or 4 barely be noticable power gains
and you can get 1 noticable power gain.
take a look at my sig, my car is not heavily modified and i
do mid 14'* at 96 mph, with good tires low 14'* easy.
i get 29 to 33 mpg @ 80 mph(flat road not in the mountains)
depending how often i get into the boost.
all this and 135,000 miles on the car which i bought new in 2000.

ROD
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Old 12-04-2006, 02:23 PM   #10
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Actually Pete, different opinions and more information is why the club exists. Everyones opinion and experience are welcomed.

In this particular case... comparing Platinum to Iridiium is the same as comparing the L36 and L67 engines and expecting them to be identical. Same goes for comparing a copper based plug to either of the others. The materials used make big differences.
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