Chevy says plugs good for 97,500….NOT
- Thread starter ammolab
- Start date
Both numbers are on the plugs. They ARE the plugs recommended and installed at the factory in Mexico. (Engine and tranny built in Mexico)
plugs “assembled in USA with Jpanese and US parts“
Well I guess I figured that since you created the thread, you'd have some additional insight to working conditions, mitigating circumstances, etc that might be pertinent to the discussion.
Evidently I was wrong.
You're 'just telling the tale'.
Ok, just as a favour, could you show us a photo of the labeling with those plug numbers? My best guess is the factory threw some Platinum plugs in with some Iridiums. We need to see the numbers on all 8 plugs.
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- Dec 28, 2014
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Surprised at this, haven't really seen a plug worth replacing in a long time. Usually I'm pulling these things out even after the recommended interval and they still look new. A few years ago we had a misfire on a chrysler 3.7, but the plugs had over 200,000 on them! I was planning on changing my plugs in my toyota at 120,000 miles imply because they are a royal pain to do.
I will say this, I have heard of guys changing their plugs at the 75,000 mile mark in their Silverados...mostly because theyre worried they are going to be tougher to get out later on. Just changed my wife's Mercedes plugs at 99,000 miles...they looked "good" but they really were stuck in there! Thought I was going to snap them right in the head.
I will say this, I have heard of guys changing their plugs at the 75,000 mile mark in their Silverados...mostly because theyre worried they are going to be tougher to get out later on. Just changed my wife's Mercedes plugs at 99,000 miles...they looked "good" but they really were stuck in there! Thought I was going to snap them right in the head.
I changed out a set of AC Delc Iridiums from a 6.0 with about 180,000 miles and they came out with a mighty squeak. The iridium tips were still there.
Here are the details:
Out (factory) 12571164 41-985
In 12621258 41-110 or 41-100 depending on the reference source.
To complicate matters there is another AC Delco plug, # 24504873 that also says 41-110. All these plugs are Iridiums.
Here are the details:
Out (factory) 12571164 41-985
In 12621258 41-110 or 41-100 depending on the reference source.
To complicate matters there is another AC Delco plug, # 24504873 that also says 41-110. All these plugs are Iridiums.
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I replace mine at 60,000 miles (100,000kms). I always found it idled slightly better and slightly better fuel economy. Always replaced with AC Delco.
FWIW, an earlier variant of the Commodore (which the SS was based upon) was sold in the Middle East as the Chevrolet Lumina SS. Although it had the 6.0L V8 (L98) as opposed to the 6.2L in your application, the recommended interval for spark plug replacement was 50,000 km (31,250 miles). I'm sure fuel quality had a role to play, but there might have been other factors influencing early replacement as well.
I like doing spark plug changes. One of my favorite maintenance items. I ordered some replacement AC Delco iridium's a few weeks ago for my Silverado and Canyon. Did the AC rebate on line and received 3 bucks a plug, a $42 check if just a coupe of days. Never received a rebate so fast.
These will set on my shelf for a few years but when I get ready I'll already have them.
These will set on my shelf for a few years but when I get ready I'll already have them.
Stock calibration?? Even a well tuned engine will wear spark plugs when heavily loaded, It's unusual to see AC-Delco (NGK) Iridium Plugs look like that at such a low mileage.
Those look worse than the OEM MC double platinums I changed on the MGM in my sig, with 135K miles & throwing multiple misfire codes!
OK, but not the proper plug for my 2016 LS3 Chevy SS Sport sedan
Totally stock as is my sons identical car. His plugs looked bad @ 95,000 and other owners had plug like this as low as 31,000 miles. Electrodes not holding up.
What's interesting is that the 2014 SS's list the AC Delco 41-162's and of course the 2016 lists the 41-110's
If you look at rock auto both years quote a NGK IridiumIX 7397 as the correct plug. I also noticed the 41-110's were cheaper than the 41-162's
Perhaps the 41-110's were a cost cutting measure by GM. I'd replace with the 41-162's or the NGK 7397's
If you look at rock auto both years quote a NGK IridiumIX 7397 as the correct plug. I also noticed the 41-110's were cheaper than the 41-162's
Perhaps the 41-110's were a cost cutting measure by GM. I'd replace with the 41-162's or the NGK 7397's
I noticed on Rock Auto, the pre-2014 Gen IV engine’s no longer have 41-110 spec’d. They now have 41-162.
In 2014, the 5.3 and 6.2 engines were Gen V engines with direct injection and the spark plug spec became 41-114.
I’m thinking that due to non-updates and errors it’s getting muddled. I’m thinking GM has replaced the 41-110 with the 41-162. Perhaps that is smoking gun that they wanted an improvement over the 41-110.
Latest internet rumour is that the 41-110 is made by NGK and the 41-162 is made by Denso. Not much to back that at up at this point.
In 2014, the 5.3 and 6.2 engines were Gen V engines with direct injection and the spark plug spec became 41-114.
I’m thinking that due to non-updates and errors it’s getting muddled. I’m thinking GM has replaced the 41-110 with the 41-162. Perhaps that is smoking gun that they wanted an improvement over the 41-110.
Latest internet rumour is that the 41-110 is made by NGK and the 41-162 is made by Denso. Not much to back that at up at this point.
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In case anyone cares, the last set of NGKs I bought from RA, for a VW, were NOT made in Japan, they were made in Thailand; I'm disappointed.
Agree. I also checked the last year, 2013, for the LS3 engine in the Corvette, and it called for the 41-110. Here is a excerpt from the owners manual.
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I'll add to the sample size. 2011 BMW E90 328i N51 at 67K miles, BMW/NGK OEM plugs. Car ran fine with old plugs.
Scott
Scott
What I really don’t get is why some of the OP’s plugs still had their tips and others did not. The same thing was reported elsewhere with the Australian LS3. Everyone realizes the Chevrolet SS was imported from Australia, right? ( no jokes about being upside down please).
