Yup; as you stated, don't dog it out. Breaking-in a new engine should be done gingerly (feather the gas pedal) and not driving at a constant speed all of the time. Rather; vary you speed in the city and especially on the freeway, so the engine does not become favored to a particular rpm. Never use your cruise-control while breaking-in a new engine either.
Lastly, your engine dip-stick should become your best friend. Check your oil level often, preferably cold after sitting overnight (for the most accurate reading).
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