The diesel fuel combustion system operation is enhanced by improving the attributes of lubricating {HEAD ~ oil} loaded with {TAIL ~ the combustion byproduct soot particles} 
The diesel fuel combustion system operation is enhanced by improving the attributes of lubricating { HEAD ~ oil } loaded with { TAIL ~ the combustion byproduct soot particles }
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD REL REL TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL