Proper break-in of a new or overhauled aircraft engine, particularly its piston rings, is essential for long-term reliability and requires specific operational procedures. Meticulous planning is ...

From Hercules to Bigfoot, the world loves a myth, and autodom has its fair share. We've even compiled some of the dumbest car myths that readers have heard. Spoiler alert: a car engine's break-in ...

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 ...