Spark Plugs - 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 11-13-2004, 12:13 AM   #1
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Default Spark Plugs

how often should you change spark plugs? my parents have kept the same six plugs in our 1993 SE with 121,000 miles, that came with the car. thats like 11 almost 12 years and 121,000 miles. that cant be great for the car in my opinion!
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Old 11-13-2004, 12:16 AM   #2
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No idea but I definitely would throw in some new ones. Cant even imagine the difference it would make for you when it made quite a difference for me after only 10k or so miles.
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Old 11-13-2004, 12:17 AM   #3
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yeah..i want to change them this weekend. i have to run to the parts store though!
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Old 11-13-2004, 07:39 PM   #4
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I don't know if the plugs in that car are any different than mine but I have 112K on a '96 Bonneville and it runs fine. I just bought a new set today and will change them soon...... just because.
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Old 11-13-2004, 08:27 PM   #5
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My '96 service manual says 41-606. Owners manual says 41-921. Delco site, dealer and parts stores say 41-101. I bought the 41-101'*. Not sure what I'll find in there when I change e'm but I am pretty sure it is what came out of the factory.
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Old 11-13-2004, 08:56 PM   #6
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"once or twice a year"! :o WOW, wish I'd have known. I'd have put your throw aways in.
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Old 11-14-2004, 12:15 PM   #7
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I have at least 70k on mine, and they are rusting at the base.. they are the delco'* that came with the car, well, the model number at least. I don't remember the number, but it was written in my owner'* manual, and it says that number on the plug.


-justin
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Old 11-14-2004, 12:48 PM   #8
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looks like i still got the lead of longest lasting plugs, 121,000
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Old 11-14-2004, 03:18 PM   #9
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My dad'* old truck, and I have no cloue on the possibility on this but 163k on 8 plugs in a ford v8?!?!?! I try to get mine out every 4-5 oil changes.....Plus my 383 stroker in my truck just eats plugs alive. Haven't figured that one out yet.
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