Breaking in a new, overhauled, or newly topped aircraft piston engine is essential for properly seating piston rings, preventing future issues, and requires strict adherence to manufacturer procedures ...

Everyone seems to have their own theory for engine break-in procedures these days, but sometimes sticking to the old-fashioned way of doing things is the best. "Getting a new engine is a wonderful ...

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 ...