Diesel fuel combustion systems are being engineered to incorporate {HEAD ~ one or more new components} which may result in {TAIL ~ the accumulation} of new, high mass levels of soot loading in engine lubricating oils 
result in
Diesel fuel combustion systems are being engineered to incorporate { HEAD ~ one or more new components } which may result in { TAIL ~ the accumulation } of new , high mass levels of soot loading in engine lubricating oils
OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH REL REL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH