Snoopy_cool

A month ago I took out the spark plug and it look disgusting. It has some brown deposite on the spark plug. I have put fuel cleaner addictive a month before that(1st 2 pic). I replaced the spark plugs and after about 1000km on them. I still get the brown color. Is this normal? What can cause this? Is this a sign of something

http://www.imagestation.com/album/?id=4289368047

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2001 SATIN SILVER PRELUDE

fmshaw1971

Well we tried to figure it out last time. Obviously it wasn't your fuel cleaner. The best idea I heard was the guy who suggested fuel additives. What do they put in your fuel in Ottowa? Many states in the US require gas to contain ethanol and other "goodies" to hurt our performance and make the engines run cleaner. Check your buddy's plugs and see if they show the same coloration.

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97 EGP Base 5spd Prelude. Engine: DC short ram, DC SS headers, AEM pulleys, Random High flow cat, Mugen sport exhaust, Apexi VAFC. Suspension: Tein SS, Tanabe front lower tie, Neuspeed front upper strut, Neuspeed rear sway, Tanabe rear upper strut, DC rear lower tie, 17X7.5 5Zigen Typhoons with 215/40/17 Goodyear F1 GS-D3s. Other: Bride Ergo II, Spoon oil cap, Magnecor wires, relocated Odyssey 680 battery, Denso iridiums, Mugen pedals, Mugen lugnuts, shortened shifter w/ Momo airleather, Rotora slotted rotors and Endless NA-Y pads, Goodridge SS lines.

[SUB[EX]

There is a color chart in my hanes. I just moved so i have not looked at it. Someone look it up in the Helms and maby the hanes if its not there.

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fmshaw1971

I looked it up, but I have never seen anything that looks red like that. The color is way off the spark plug charts.

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97 EGP Base 5spd Prelude. Engine: DC short ram, DC SS headers, AEM pulleys, Random High flow cat, Mugen sport exhaust, Apexi VAFC. Suspension: Tein SS, Tanabe front lower tie, Neuspeed front upper strut, Neuspeed rear sway, Tanabe rear upper strut, DC rear lower tie, 17X7.5 5Zigen Typhoons with 215/40/17 Goodyear F1 GS-D3s. Other: Bride Ergo II, Spoon oil cap, Magnecor wires, relocated Odyssey 680 battery, Denso iridiums, Mugen pedals, Mugen lugnuts, shortened shifter w/ Momo airleather, Rotora slotted rotors and Endless NA-Y pads, Goodridge SS lines.

axion68

I would have to agree, the color isn't coming from combustion IMO. It is probably a fuel additive or something of that nature.

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soon2bsh

Most likely the fuel additive u used.

The majority of octane boosters make your plugs red, so the "fuel cleaner" is most suspect.

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fmshaw1971

But he replaced the spark plugs long after he used the fuel addative and it still came up red on the second set of plugs.

I suppose it could be some kind of oxidation or rust, but how would he be getting iron in his fuel? If you can think of a way to get iron in the fuel, I would say that's the probable cause of your rust colored plugs.

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97 EGP Base 5spd Prelude. Engine: DC short ram, DC SS headers, AEM pulleys, Random High flow cat, Mugen sport exhaust, Apexi VAFC. Suspension: Tein SS, Tanabe front lower tie, Neuspeed front upper strut, Neuspeed rear sway, Tanabe rear upper strut, DC rear lower tie, 17X7.5 5Zigen Typhoons with 215/40/17 Goodyear F1 GS-D3s. Other: Bride Ergo II, Spoon oil cap, Magnecor wires, relocated Odyssey 680 battery, Denso iridiums, Mugen pedals, Mugen lugnuts, shortened shifter w/ Momo airleather, Rotora slotted rotors and Endless NA-Y pads, Goodridge SS lines.