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Dan <br />SD75's are EUI(electronic unit injection) locomotives, whereas the majority of the SD70M's are MUI (mechanical unit injection) locomotives. EMDEC units from that time did not fair to well initially. Getting better though. When you look at percentages, there are really not too many of them out there. BNSF and ONT Northland RR only. I would put the 70M against the Dash-9. SD75 is pushing the envelope of the 710 engine running at 950 rpm as well....Why do you say "true competition"?
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