I have just bought a new 2021 Veloster N. I was reading through the manual on different things and making sure I have the needed knowledge to best care for it. In the section on the break in period, I found myself with a question. I intend to drive the car 150 miles while varying my speed and making frequent stops to allow for variable RPMs. However, I will be driving on a highway for most of it. The manual states to not drive to slow or fast. The speed limit on that highway is 75 MPH. Should I try to stay closer to a variable or 65-75 MPH or should I vary it from 55-65? It doesn't really say what they consider "fast". I'm also considering just carpooling with someone instead, but I really kinda want to show off my new car. You guys know how it is.