I was changing the plus and wire,on the second plus oil. on 1991 Mitsubishi Galant

Oil on my plus the second third and fourth plus had oil.

Asked by for the 1991 Mitsubishi Galant
DOHC engine?? If so replace the valve cover gasket SET.
1 more answer
Assuming you mean PLUGS, then wetry is correct. That's if you mean oil on the outside of the plug.