04-06-12, 01:35 PM
Dont bother mate, copper grease is really best for threads that are likely to seize through corrosion, if you use copper greas on the plug some will find its way into the new oil and that means that youve got particles of copper floating around in there, will probably have zero effect but wont help either. You shouldnt have any trouble at future oil changes if you use a good quality ring spanner.