spark plug change

Tech discussions on the L77 6.0L V8.
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cerbomark
Posts: 316
Joined: Tue Oct 02, 2018 5:37 pm
Location: upstate NY

spark plug change

Post by cerbomark »

What do you all know about the idea of changing spark plugs on a 50K mile car with 250 hours TOTAL idle time. Guessing about 1500 hours running time. Runs good. Is it worth the time and money. I am aware I think GM calls for 100K. Everything else on the car has been maintained way ahead of required time? Thanks.
2016 C1
smwalker
Administration Staff
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Location: Azusa,CA

Re: spark plug change

Post by smwalker »

Yea really not worth it. You can pull a few and inspect but you will find no wear to speak of. Rule is wait till 100K or if you get a misfire before that replace them all.
Steve Walker
Azusa, CA
'11 PPV 9C3 Huron White
Sanford
Posts: 356
Joined: Mon Dec 12, 2016 9:38 pm
Location: Texas Gulf Coast

Re: spark plug change

Post by Sanford »

With that mileage along with the low hours, I would say it would be a waste of time and money.

David
s/c'd cav
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Re: spark plug change

Post by s/c'd cav »

the original ac delco platinum id change around 50k , when GM farmed out plugs to ngk and irridium , they were alot better plug

i think the current are champions , and not much experience with them

but overall around 50k id look them over , and from there 15-20k
CrashTestDummy
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Re: spark plug change

Post by CrashTestDummy »

Like most of the others, I'd say not worth it unless you're chasing an issue. Had a slight vibration at idle on our '10 Tahoe with, at the time, about 85K miles. I did plugs and wires while changing the oil. The plugs all looked great. The new plugs and wires made zero difference in the way the truck ran.
Gene Beaird,
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cerbomark
Posts: 316
Joined: Tue Oct 02, 2018 5:37 pm
Location: upstate NY

Re: spark plug change

Post by cerbomark »

Thanks all, I heard enough and will leave it alone for now.
2016 C1
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