spark plug cone color, golden brown? mines cherry red...

[TheX1992]

the cone, which the electode is attached to, instead of being golden brown/tan, is red, i used a hotter plug cuz someone told me to (long story), and my old one was golden brown, im gonna go colder agian to my old one, but why would it be cherry red? ive never seen it before. ill try and get a picture. this just puzzles me

[TheX1992]

anyone?

[NJ300ex]

Do you use an octane booster? That has been known to turn the inside of your engine red. Otherwise I have never heard of a red plug.

[GoLikeHell]

Gas additives will turn your plug different colors! Rust color is a sunoco high octance trademark. I have found green plugs from using Marathon gas.

Hope this helps
Mark

[skemp]

I have seen some plugs that were almost a flourescent pink color from using additives such as octane booster. With the race fuel I mix my gas with, my plug has a slight hue of orange.