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Old 10-08-2022, 05:13 PM   #1
MartinLe
 
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Spark Plug Replacement Interval

How often do y'all change your plugs?
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Old 10-08-2022, 09:21 PM   #2
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Probably never.

I'll be dead before I get to 97,500 miles.
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Old 10-08-2022, 09:28 PM   #3
SATINSTEEL1LE
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Quote:
Originally Posted by MartinLe View Post
How often do y'all change your plugs?
At your power level maybe once a year.
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Old 12-08-2025, 03:44 PM   #4
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manual says 60,000 miles
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Old 12-08-2025, 04:38 PM   #5
ZLRob
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Been running the same ones since 28K. Currently have 51K. Plugs have seen a lot of tuning miles, misfires, flooding due to misfiring injectors. Still going strong, still not misfiring. Lol. You're good til at least 60K for sure. Maybe even more.
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Old 12-08-2025, 11:29 PM   #6
SOCAL.M6.ZLE
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I run the Brisk RR12S and change mine every 5K miles or less simply due to how often my car is apart. I would run the same plug if I were you and change them every 10k
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Old 12-09-2025, 09:50 AM   #7
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Cool

Quote:
Originally Posted by SOCAL.M6.ZLE View Post
I run the Brisk RR12S and change mine every 5K miles or less simply due to how often my car is apart. I would run the same plug if I were you and change them every 10k
I agree, although Gabe has a lot more mods than I do... so with the Stock SC and only a 9.17 lower pulley with headers and no cats, I am running the Brisk RR14S plugs as they are the best for our LT4 engines. I have been running them for the past year, over 4K track miles and 5K road miles without a misfire either on the track or street.
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Old 12-09-2025, 10:37 AM   #8
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Mine are changed... EVERTIME I sent it to Katech to have more work done to it !!! At this point, that's once a year since buying the car new! Hahaha I just had to say that, as it even sounds funny to me when I say it! But, I only drive my car 3K a year too.
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Old 12-09-2025, 11:34 AM   #9
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Prior to a chassis dyno visit...about once a year.
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Old 12-13-2025, 03:26 AM   #10
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I just had a 4 year service done on my car, 22k kms on it. This is what the single plug they pulled looked like. Decided to change them as they are really not that expensive.
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Old 12-13-2025, 10:02 AM   #11
SOCAL.M6.ZLE
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Spark plugs and oil are cheap, relative to the cost of the car... use the best and change often. Or, sell the car to someone who will.
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