I pulled the plugs out of my OBDI JDM B16A and as far as I know they (like the whole rest of the engine) look great. The catch is the "as far as I know" part. I don't have a digital camera or I'd post them up. I remember some old auto books used to have color charts to compare used plugs to. Does anyone know where to find such a thing?

-Woody

 

Are the electrodes tan? If they're a tannish color, then you're fine.

 

http://www.ngksparkplugs.com/t...ry=US

 

Tan with a tiny bit of black flakiness on them, presumed to not be oil.

And thanks for the link PrettyLude.