red /oarnge spark plug color

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Aug 19, 2003 | 10:26 PM

rumpilstiltskin

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red /oarnge spark plug color

The plugs on my 86 lb9 all have an oarngish/red tint to the electrode. A little darker than light rust. They are ac delco CR43TS plugs. What would cause that color electrode? I am not losing any coolant whatsoever.

Aug 20, 2003 | 06:55 AM

todd200

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Joined: Jun 2002

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From: Bowling Green KY

Car: 87 IROC-Z

Engine: 350ci

Transmission: T-5

An orange/red color on the plug electrode generally means a fuel additive was used. Are you running an octane booster?

Aug 20, 2003 | 02:44 PM

rumpilstiltskin

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I have before, but that was almost 2 tankfuls ago, its normal for them to turn that color?

Aug 20, 2003 | 09:15 PM

todd200

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Joined: Jun 2002

Posts: 558

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From: Bowling Green KY

Car: 87 IROC-Z

Engine: 350ci

Transmission: T-5

Yes it will stain them. Everyone I know that runs an octane booster hador has red plugs. It's completely normal

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