I primarily heard it called “Advertised HP.” I thought companies in the Gulf started this “liar’s hp” game. As I recall they called it “Gulf rated HP” at one time. They just forced everyone else to follow suit in order to compete. Apparently most of the people who were hiring tugs didn’t know any better and just took whatever they claimed for HP at face value. People who did know better started asking what the engines were and just ignored the advertized hp.