Originally Posted by LiquidBiohazard
the thing that was there was actually on the spark plug threads so i dont knwo what it was but my mechanic said its fine it will burn up so i said alright. the spark plug was really put in tight tho, but its all over and done iwth now everything is fine so far
The last person that changed your plugs must have been we todd ed.

I'm surprised your car even ran if it had something on the threads of the plug. It would'nt seat properly if it did.