As a method, the invention is directed to {HEAD ~ the protection} of {TAIL ~ silver engine parts} in an internal combustion engine by lubrication thereof with the above described lubricating composition 
of
As a method , the invention is directed to { HEAD ~ the protection } of { TAIL ~ silver engine parts } in an internal combustion engine by lubrication thereof with the above described lubricating composition
OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD REL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH