Definitely check them every 10k or so. Running colder plugs requires monitoring.
Who said I've only worked on 3 cars? I've KEPT my cars that long, which lends towards repeated experience over longevity/miles. I also have 15+ years of experience modding cars. I'm happy to be wrong and be given knowledge, but right now, this is not one of those cases. You don't seem to have worked with spark plugs or boosted engines enough. You just assumed that because it's forced induction, it runs hot enough all the time which is not correct. What you don't realize is that the car is not always pushing large amounts of boost (it's like you don't know there's a wastegate and a BPV/BOV). I have been clear as day saying "daily driving". It is common on all engines that significantly colder plugs (again, generally beginning around 2 heat ranges) have increased carbon build up on them from daily driving. This is for anyone, on any combustion engine, NA or boosted. Your knowledge here seems to be limited to constant WOT/high RPM situations as all your numbered points inadvertently refer to without realizing it. You think that extra 10 degrees of timing means anything at 15% throttle going 30MPH through the neighborhood? You think that 17psi of boost is getting him from his driveway to the on ramp to get to work? If he has a long enough commute, that could assist in cleaning deposits off, but daily driving will always see increased carbon deposits on colder spark plugs. This is a repeatable known, and why selecting the right heat range is so important.
You really are Googling a lot of this, I'd almost swear by it. You're saying all kinds of things all over the place that aren't even related like you're trying to prove you know something. You talk as if I or anyone else doesn't know that carbon is a result of the combustion process. You talk about higher octane like it has anything to do with the detergents and chemicals added to fuel to assist in cleaning (lol), and you act as if the exhaust having carbon build up correlates to what's happening on top of the spark plug (lol, where do you think the burned off carbon goes?). I've already put 6k miles on a LAP3 Pro in Mode 2 on stock spark plugs gapped to .027". Meanwhile, everywhere suggests I do two heat ranges colder. But instead of just reading things on the internet, I know that E85 runs cooler, so I tested my theory. I plopped two heat ranges colder in there (HKS plugs, GOOD quality stuff), and in just 1k miles of daily driving, a little bit of black soot was already forming. Went back to my stock plugs, and they show no signs of build up or pre-ignition hot spots from WOT runs. It's things like this that come from experience that allow me to adjust what I'm doing rather than just regurgitate things I read somewhere. I could probably go one heat range colder for "safety" if I wanted, but what's the point? I'm at the right heat range now that's balanced perfectly between daily driving and WOT Mustang shaming
It is why I posted what I did to help the OP, where you came in with some sort of argumentative nature that is not helping anyone at all...
Who said you said you only worked on 3 cars? I specifically talked about you mentioning 3 vehicles you've owned... is reading comprehension that hard for you everyday? Or is this a mid week thing ?
I never assume anything, unlike yourself ( you mention you assume a couple of times in the thread and also make suggestions about myself that couldn't be further from the truth that you'd almost swear by ) An engine being at operating temperature is also not a hard theory to understand. Believe it or not, for your coolant to read in the 180*F + range, the engine needs to be much warmer. Being that the spark plugs are inside the engine.... I think even you can see where I'm going with this.
Daily Driving is defined as driving one does consistently, nearly everyday. No where in the definition of daily driving does it suggest that its stop & go, low speeds, or the distance at which is traveled ( or the speeds ). While your only defense to being shown up time and time again is to suggest I'm using google in making you look uneducated time and time again, I think you yourself would be well served spending some time on it.
My reference to carbon being apart of the combustion process is a meant to be an intelligent way of slighting you. The fact you don't recognize that, just furthers the need for it in the first place. Your confirmation on its necessity is appreciated.
I act as if .... that's an interesting statement from someone referencing something I typed, that they read, through a computer... Remind me again why you have issues seeing comparisons used to show you how irrelevant your points are ? Outside of the obvious of course.. Obviously carbon in the chamber and carbon in the manifolds aren't related, thus why I never related the 2. IF, and its a big if, you could read, you would have read me pointing out that the colder plugs run more efficiently, so what minor carbon build up they may add, its more than offset by the reduction in carbon other parts will have build up.
Are the factory plugs the same material as the colder Iridium plugs? No? Then shut up about your "personal comparison" based on a small sample size between 2 very different products both is design and material.
Did you ask what the "point" of doing something to improve the "safety" of your investment is ? Do us all a favor, go into your account settings asap and deactivate your account. You've made it abundantly clear you are not well, and need to spend your time getting better before returning and attempting to contribute. "Whats the point of doing a cheap yet effective change out of parts, that at worst offer more protection to the second largest purchase I'll statistically make in my lifetime" ( a house is #1 if you aren't able to deduct that yourself ).
Nothing you posted after my reply has been helpful what so ever. You spewed out inaccurate, at best only personally confirmed opinions based on small sample size tests you performed in uncontrolled environments. Nothing about that is valuable to anyone, you do understand that research, and development as a general term mean right? Or how the science of a test at its most basic definition is supposed to work when done effectively right? or?
TL/DR, You're an idiot, your logic is flawed based on small sample size tests you performed yourself without controlling variables or doing multiple ones to eliminate error/chance. On top of that, you have no actual knowledge, assume multiple times that others are assuming ( you used the word assume ), and are only able to provide evidence of how out of your comfort zone anything related to vehicles puts you, and how badly you "perform" as a result.
