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