The lubricating oil finds {TAIL ~ its way} into {HEAD ~ the path} of the coolant and becomes mixed therewith 
The lubricating oil finds { TAIL ~ its way } into { HEAD ~ the path } of the coolant and becomes mixed therewith
OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL OTH HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH OTH