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Originally Posted by wedouglas
they source doesn't seem reputable. besides, how can altering the metals molecular organization effect fuel efficiency? they still do exactly the same thing and nothing is happening to the fuel.
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because all parts of an engine expand from heat and warp and flex from all the forces that are involved. if you can alter the metalergy where these changes are minimized you can build an engine with more precise tighter clearances thus resulting in higher fuel economy
as for a rifle barrel, with each shot the barrel heats up and changes shape as it expands, if you can control that better you will get much tighter patterns. for some it makes the difference of putting 3 or 4 rounds in the same hole at several hundred yards.