i guess im looking for a problem where there maybe isnt one...
when i changed the plugs previous time there was no oil and only a light grey soot on the contact points and those plugs had been in for 5 or 6 years as opposed to 1 year on the set ive just taken out - so there is a noticeable difference
good thing is the plugs are easy to take in and out so i can check their condition as needed
