Originally Posted By Supercuda
You can smell the difference between oil and gas fouling
Only if you know how work shruggy
I know there is a bunch of different stuff on trouble shooting cars and other problems I don't know shruggy
OP, if the plug is shiny it has oil on it, if it is not shiny and really black cover up with guk it may be gasoline work
You could swap that plug into a cylinder that is looking good and see if it will clean up in that cylinder and see if the other plug goes bad scope wrench up

Mr.Cab Racing and winning with Mopars since 1964. (Old F--t, Huh)