Sparksplugs Changed?
10-23-2018, 10:30 AM
#2
are you stock?
I would say check them at 20k and see what they look like. Although iridium plugs are for longevity, in previous GM cars they suggest changing them at 45 or 60k. Some cars they say itll last until 100k. Which is ridiculous. I have almost 12k miles now but next spring I'm changing the plugs.
I would say check them at 20k and see what they look like. Although iridium plugs are for longevity, in previous GM cars they suggest changing them at 45 or 60k. Some cars they say itll last until 100k. Which is ridiculous. I have almost 12k miles now but next spring I'm changing the plugs.
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Monkey D. Luffy (10-23-2018)
10-23-2018, 11:18 AM
#3
Race Director
Thread Starter
are you stock?
I would say check them at 20k and see what they look like. Although iridium plugs are for longevity, in previous GM cars they suggest changing them at 45 or 60k. Some cars they say itll last until 100k. Which is ridiculous. I have almost 12k miles now but next spring I'm changing the plugs.
I would say check them at 20k and see what they look like. Although iridium plugs are for longevity, in previous GM cars they suggest changing them at 45 or 60k. Some cars they say itll last until 100k. Which is ridiculous. I have almost 12k miles now but next spring I'm changing the plugs.
10-23-2018, 12:10 PM
#4
I would change them. But that's just me. Plugs are cheap anyway plus at that mileage you wanna check them out so might as well replace as well.
I should have about 14 or 15k by next spring. I'm gonna change them.
I should have about 14 or 15k by next spring. I'm gonna change them.
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Monkey D. Luffy (10-23-2018)
10-23-2018, 01:06 PM
#6
Team Owner
I do my own plugs and at the 2300 install at 28k. I didn't feel the need to check them neither did my tuner. I look to change them after 70-75k with 100k being too long.
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Monkey D. Luffy (10-24-2018)
10-23-2018, 01:07 PM
#7
Team Owner
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10-23-2018, 01:34 PM
#8
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I haven't changed the plugs on any of my Corvettes since the mid 80s. I keep the cars about 6 years and at about 5K to 6K miles per year they just are getting broken in. Changing the plugs on a C7 is a PIA due to the monkey business you have to go through to gain access to the passenger side plugs. You stand a better chance of breaking the new plug you put in than the old plug being bad. The plugs last close to 100K miles without giving any problems so why bother doing something that could f things up. In other words if it ain't broke don't fix it.
Bill
Bill
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10-23-2018, 02:04 PM
#9
Le Mans Master
Inspection every five years to ensure no metal to metal bonding has occurred.
Cost per plug @$7 with tax parts = $60.
Can be cost effective to just change plugs every time you inspect them.
Murphy's Law be prepared to replace damaged plug wires too.
Modern OEM plugs truly seem to last 100K miles.
Change when you wish, 75K miles could be a good number, so could 50K, but 105K, that would
be a bad number. Your choice.
Let the opinions continue haha
Cost per plug @$7 with tax parts = $60.
Can be cost effective to just change plugs every time you inspect them.
Murphy's Law be prepared to replace damaged plug wires too.
Modern OEM plugs truly seem to last 100K miles.
Change when you wish, 75K miles could be a good number, so could 50K, but 105K, that would
be a bad number. Your choice.
Let the opinions continue haha
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Monkey D. Luffy (10-24-2018)
10-23-2018, 04:57 PM
#10
Safety Car
Part of the reason they go with such expensive plugs is the aluminum heads. Every time you take out and reinstall the plugs you risk damaging the threads. If you damage the threads a helicoil just won't do it on one of these motors. Plugs last a long time these days.....don't worry. The most a bad plug will do is misfire. You will get a code and then you know it's time to change the plugs.
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Monkey D. Luffy (10-24-2018)
10-24-2018, 06:38 AM
#11
Race Director
Thread Starter
I haven't changed the plugs on any of my Corvettes since the mid 80s. I keep the cars about 6 years and at about 5K to 6K miles per year they just are getting broken in. Changing the plugs on a C7 is a PIA due to the monkey business you have to go through to gain access to the passenger side plugs. You stand a better chance of breaking the new plug you put in than the old plug being bad. The plugs last close to 100K miles without giving any problems so why bother doing something that could f things up. In other words if it ain't broke don't fix it.
Bill
Bill
Inspection every five years to ensure no metal to metal bonding has occurred.
Cost per plug @$7 with tax parts = $60.
Can be cost effective to just change plugs every time you inspect them.
Murphy's Law be prepared to replace damaged plug wires too.
Modern OEM plugs truly seem to last 100K miles.
Change when you wish, 75K miles could be a good number, so could 50K, but 105K, that would
be a bad number. Your choice.
Let the opinions continue haha
Cost per plug @$7 with tax parts = $60.
Can be cost effective to just change plugs every time you inspect them.
Murphy's Law be prepared to replace damaged plug wires too.
Modern OEM plugs truly seem to last 100K miles.
Change when you wish, 75K miles could be a good number, so could 50K, but 105K, that would
be a bad number. Your choice.
Let the opinions continue haha
Part of the reason they go with such expensive plugs is the aluminum heads. Every time you take out and reinstall the plugs you risk damaging the threads. If you damage the threads a helicoil just won't do it on one of these motors. Plugs last a long time these days.....don't worry. The most a bad plug will do is misfire. You will get a code and then you know it's time to change the plugs.