Red HOT spark plugs
 

Has anyones spark plugs turn red? The white part closes to where the spark is produce on autolite 25 was red when i removed them to change em. New that part is white but I remove to change and they were red. This is the first time this has ever happened. I always had my timing at 12, but recently i advanced to 14 and then this occured. it happen after a went to 14. Was this the cause of advanced timing? I put the timing back to 12 to see if it happens again.

Are you running any additives in your fuel?

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67 Fastback - Arctic White Pearl paint
351W ,Trick Flow Aluminum Heads, Edelbrock TorkerII, Carter 750 CFM, Comp. Cam 477/510 219/233@.050, Performance Automatic C-4 Trans, 3.55 gears, Front Disc Brakes, 1-1/8" Fr. 3/4" rear sway bars.

My 351W Fastback

no. just 92 octane.

They might put an additive in the fuel in your area. Or maybe just that particular station. Try getting gas somewhere else if you go to the same place all the time.

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87 GT
Full exhaust, K&N, KB Subs, BBK STB, homeade dumps...


87 Taurus
New York
Winters Bite!

thanks,
I've always gone to Chevron, usually the same station. I'll try some where else now.
So its basicly an additive that would cause this?

Yes most likely.

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87 GT
Full exhaust, K&N, KB Subs, BBK STB, homeade dumps...


87 Taurus
New York
Winters Bite!

I agree it must be an additive.

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67 Fastback - Arctic White Pearl paint
351W ,Trick Flow Aluminum Heads, Edelbrock TorkerII, Carter 750 CFM, Comp. Cam 477/510 219/233@.050, Performance Automatic C-4 Trans, 3.55 gears, Front Disc Brakes, 1-1/8" Fr. 3/4" rear sway bars.

My 351W Fastback