Hey R3V,
Just changed my plugs and this is what they looked like. Anyone know what this is an indication of?
Just changed my plugs and this is what they looked like. Anyone know what this is an indication of?
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I see nothing of concern.
But the photo's kinda blurry.
Browned or some white/grey powder is normal.
Oily, glossy/glazed, greened, deposited, bad pitting, or excessive white powder is bad. -
yeah browned with slight black on top.
Do you know how long it takes for plugs to get like that?
This is the first time I changed the plugs since I bought the car.
I also have higher HC, 147 trying to get below 86
Thinking new plugs may help.
Originally posted by TurboJake View PostComment
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They can get brown like that in less than 1k miles. So it's kind of hard to date a plug. But by the looks of them, they're the minuscule electrode Bosch platinum +2's.
They could be less than a month old. But they aren't ancient plugs.
But, don't put them back in(as in, a new set of them). Run the factory Bosch supers. WR8LCComment
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I already used NGK'sComment
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Good. Anything is better than the +2's and +4's.
(The exception being a 99+ VW. they love them. But that isn't whats in question here)Comment
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What does it mean if the plugs have a slight green coloring?Comment
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Oxidation. Car probably sat a long time or the plugs are freaking ancientComment
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As long as the tips aren't white/visibly burnt or dripping wet, there isn't much to be concerned about with plugs. Sometimes they can shed a little insight on diagnosis, but it's hard to tell if your plug is 100 miles old or 100k looking how it does.1985 325e
1978 Honda Cb550 Cafe RacerComment
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Def saw a huge difference after changing plugsComment
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If the edges are a little rounded or worn or seem molten, (too blurry to see well), the plugs are too hot or you are using too low octane fuel, maybe your pistons/head are dirty (with coal deposits) and have some preignition. Check your plugs after 200 miles, they should look light brown or whitish.
good luck
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