A method of enhancing the combustion efficiency of liquid fuels comprising the steps of contacting {HEAD ~ a liquid fuel} with {TAIL ~ a cast alloy article} comprising: 
with
A method of enhancing the combustion efficiency of liquid fuels comprising the steps of contacting { HEAD ~ a liquid fuel } with { TAIL ~ a cast alloy article } comprising :
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD REL TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH