plug life - GM Forum - Buick, Cadillac, Chev, Olds, GMC & Pontiac chat


1992-1999 Series I L27 (1992-1994 SE,SLE, SSE) & Series II L36 (1995-1999 SE, SSE, SLE) and common problems for the Series I and II L67 (all supercharged models 92-99) Including Olds 88's, Olds LSS's and Buick Lesabres Please use General Chat for non-mechanical issues, and Performance and Brainstorming for improvements.

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Old 06-15-2005, 05:54 PM   #1
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does my car have the 100,000 mile plugs and wires?
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Old 06-15-2005, 06:02 PM   #2
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100,000 is what GM says to make people happy... Id say 75,000 is about time to change them.. I have 85k on mine and plan to do them before something goes bad
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Old 06-15-2005, 06:15 PM   #3
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The plugs in the 99 should make it to 100,000 miles... But I'd say if you were to replace them you may bring back a little bit of lost performance...

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Old 06-15-2005, 06:23 PM   #4
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i think in gonna change them anyways cuz during heavy acceration the car kinda hesitates.
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Old 06-15-2005, 06:25 PM   #5
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do the wires too.
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Old 06-15-2005, 06:26 PM   #6
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I know I say this to everybody... Try the NGK TR55'*... They are a good plug for the price.... You might get 30,000 miles out of them...

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Old 06-15-2005, 06:28 PM   #7
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personally im gonna buy the ac delco cuz ive had nothing but good luck with them or i guess i could by some of those perfomance plugs but they dont last as long right?
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Old 06-15-2005, 06:33 PM   #8
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Quote:
Originally Posted by L27Buick
personally im gonna buy the ac delco cuz ive had nothing but good luck with them or i guess i could by some of those perfomance plugs but they dont last as long right?
I have had a set in my 95 for better than a year already and have had no issues... I usually replace them every year anyhow...

You could get the AC Delco 41-606( copper ) or the Platinums that you should have in there now.... Irridiums... You could also use Rapidfire 14'*( I believe that these are all Platinum now ) I have used these in the past with no problems...]

You could also use Autolite 606, Platinum or double platinum as well...

All of these would be good plugs...

NGK makes plugs for AC Delco

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Old 06-15-2005, 10:43 PM   #9
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Quote:
Originally Posted by jr's3800
I know I say this to everybody... Try the NGK TR55'*... They are a good plug for the price.... You might get 30,000 miles out of them...
X2. That'* what I use and am very happy with them!

I am on my second set, however. They are a sweet plug.

Jim...my factory AC Delcs only lasted to 55K. At that point I had to change the wires too.
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Old 06-15-2005, 11:03 PM   #10
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My car had original plugs at 112K when I replaced them.
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