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Old Aug 16, 2021 | 03:16 PM
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Default Spark Plugs

Hi guys, I would like some advise on spark plugs and wires.
My 98 has 20K miles. I always use 93 octane gas with stabil in the winter, it has never even been driven in the rain.
It’s basically like new. Not the slightest amount of rust at all, anyplace.

Under those conditions do I need new spark plugs just because of the age? Thank you, Steve

Last edited by StevieB; Aug 16, 2021 at 03:20 PM.
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Old Aug 16, 2021 | 03:32 PM
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I'd be much more worried about fluids, belts, and tires. These cars are made to be driven, and they can develop issues if they sit too much. I suspect the plugs are fine, but you may need a new battery.
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Old Aug 16, 2021 | 05:33 PM
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You can pretty easily pull one and take a look. Spark plugs can be a bit funny at times, they can last 1000 years, or the little things can come apart. Can't hurt to check. However, as the above poster said: hoses, belts, fluids.are the things to check first.
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Old Aug 16, 2021 | 05:39 PM
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Originally Posted by MWWarlord
I'd be much more worried about fluids, belts, and tires. These cars are made to be driven, and they can develop issues if they sit too much. I suspect the plugs are fine, but you may need a new battery.
Everything EXCEPT for the plugs have been maintained exactly as if the car has been driven
at average mileage. Even while being stored and covered during the months while not driven. Stabil,
New Mobil1 every spring even when it is still clear, brake fluid because it wasn’t perfectly clear.
Battery when it had nothing wrong with it, based upon age, absolutely everything I can think of.








Last edited by StevieB; Aug 16, 2021 at 05:41 PM.
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Old Aug 16, 2021 | 05:43 PM
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The stock iridium spark plugs are rated for 100,000 miles. I haven't changed mine in my 02 (37,000 miles). I think you are good to go.
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Old Aug 16, 2021 | 06:14 PM
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Your spark plug wires are probably brittle from age and may come apart if you try pulling them off your spark plugs.
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Old Aug 16, 2021 | 06:34 PM
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Originally Posted by Mike98SilVert
Your spark plug wires are probably brittle from age and may come apart if you try pulling them off your spark plugs.
Yea, that has come to mind as well.
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Old Aug 16, 2021 | 07:01 PM
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When I was a kid I had a 69 Charger 426 hemi. That was so easy to get at all of the plugs. They came straight
out of the head on top. I think all cars should have a hemi. Although In the case of the C5,the front would be
too high to sit so far back

This= with 2 holly 4 bbl carbs

No exhauset pipes.
Just headers and 2 small mufflers/that was it, pretty LOUD
A lot for a 17 year old kid to control,but not impossible. Just mash the pedal to the floor/ hold on tight and keep it in a straight line.
It had some mods that I can't remember. It wasn't a manual trans or automatic,hard to explain.
This has been a walk down memory lane.


I look at that, now an old man that can't change plugs








Last edited by StevieB; Aug 16, 2021 at 07:16 PM.
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Old Aug 16, 2021 | 11:09 PM
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Pull a plug or two and see what they look like - most likely they will be just fine. If anything, the wires may need to be replaced as they do degrade over time.
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