Breaking in a new, overhauled, or freshly topped aircraft engine requires meticulous planning, including detailed inspections, specific abort plans, and a calm environment. The break-in process ...

Modern engines leave the factory far tighter and cleaner than they did a generation ago, but the first few hundred miles you put on a new car still shape how that powertrain feels years later. The ...

There's a certain kind of anxiety that comes with driving a brand-new ICE car. Thanks to the break-in period, people tend to drive with more restraint than they normally would. That's fair enough, but ...