Does anyone really believe spark plugs are good for 100,000 miles? - ModernCamaro.com - 5th Generation Camaro Enthusiasts
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post #1 of 22 Old 03-21-2015, 09:09 PM Thread Starter
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Does anyone really believe spark plugs are good for 100,000 miles?

Does anyone really believe spark plugs are good for 100,000 miles?

I need to replace mine pretty soon, 34,000 miles.

do you all recommend this a DIY project on the LFX or is it not worth the trouble?

2012 1LS Silver Ice - Mods - SS Strut Brace, RX Catch Can, BBK CAI, TRS Bi-Xenon HID's, Blackout Grill, RX65 Radar Detector, 700watt 4 Channel Amp with Kicker Speakers, 4Pack Gauges Added, 30% tint. Baer Drilled Rotors & pads, 20" American Racing. Awesome car.
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post #2 of 22 Old 03-22-2015, 08:04 AM
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my last 3 cars have been 3 year leases so I never hit 100k, maybe 50k and never changed the plugs. Camaro a different story, probably will change them way sooner. PS: I am from a generation where plugs were changed at 12k.


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post #3 of 22 Old 03-22-2015, 08:30 AM
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Quote:
Originally Posted by CyberPunk223 View Post
Does anyone really believe spark plugs are good for 100,000 miles?

I need to replace mine pretty soon, 34,000 miles.

do you all recommend this a DIY project on the LFX or is it not worth the trouble?
At a minimum, today's Platinum plugs can go 60K even with hard driving in a NA car. These aren't your daddy's copper plugs in these things! I change em out in my others cars at 60K cuz they aren't that expensive if ya shop around. Plus I do it all myself, so FREE LABOR!

Chuck
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post #4 of 22 Old 03-22-2015, 09:48 AM
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Two Ford vans and a Cadillac SRX have proven out this theory.
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post #5 of 22 Old 03-22-2015, 09:53 AM
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...and 5 or 6 other that I've owned.

James 1:25 Ordered from Faulkner Chevy #NKCF02 1100 5/8/9 2000, 3300 7/16/9 TPW 7/20,GOT MY (low) VIN! 4000 7/24/9 ,Picked up 8/7/9!!! Signed Litho #45. Car signed by FBodfather 2011. Service: Jennings Chevy in PA. We don't "drift", kiddies... we POWER SLIDE! MOTM/COTM Sept 2012 Pro Patria Vigilans.
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post #6 of 22 Old 03-22-2015, 09:53 AM
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Had a Durango Hemi (those have 16 plugs and are a PAIN to change). I put in the 125,000 mile plugs -- and @ 90,000 on them still were going strong...

-Don

2011 L99 LSA SC Z/LE ( The Build: http://www.camaro5.com/forums/showthread.php?t=385577)
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post #7 of 22 Old 03-22-2015, 10:10 AM
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They can still provide spark for that length of service, but after 50k just pull a few and inspect them and check gap. Rare for a iridium or platinum to go more than 50 k w/out loosing the conductor puck on the strap....and without ideal gap, your not realizing the full potential. So yes, they can go that long and longer and the engine will still run close to fine, but not at optimum. So it all depends on if the owner cares to keep it at it's best, or just get by. Personal choice. I choose to get several hundred thousand miles out of most of our vehicles with the best power and economy and least amount of failures.
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post #8 of 22 Old 03-22-2015, 07:31 PM Thread Starter
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I don't trust the manufacturers claims of 100,000 miles plugs.. they just want to claim low maintenance & sale more cars. my experience is that cars always run noticeably better on fresh plugs.

2012 1LS Silver Ice - Mods - SS Strut Brace, RX Catch Can, BBK CAI, TRS Bi-Xenon HID's, Blackout Grill, RX65 Radar Detector, 700watt 4 Channel Amp with Kicker Speakers, 4Pack Gauges Added, 30% tint. Baer Drilled Rotors & pads, 20" American Racing. Awesome car.
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post #9 of 22 Old 03-23-2015, 08:21 AM
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Quote:
Originally Posted by CyberPunk223 View Post
I don't trust the manufacturers claims of 100,000 miles plugs.. they just want to claim low maintenance & sale more cars. my experience is that cars always run noticeably better on fresh plugs.
Right there with you, and I use actual dyno results, etc.
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post #10 of 22 Old 03-23-2015, 09:55 AM
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Age is also a factor. 100,000 miles while only doing 10,000 miles a year... probably not. I like the 5year/100k rule for platinum plugs (if your AFR is on point)

2year/20k for copper.


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