My salesman said don't worry too much about the "break-in" period (nice choice of words there eh?) after 200 miles. Just to be on the safe side you should for at least the first 500-1000 miles on a long trip travel at varying speeds every 2-3 miles (50/60/70/60/50) or something like that making sure you don't keep the RPM's at the same level for a long period of time.
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