The age of million-dollar engines is over, and it’s high time to come to terms with this. However, there are still many engines in service that continue to churn out the next hundred thousand without any problems. Criteria For a Reliable Engine Strictly speaking, the reliability of any power unit is determined at the factory. Each model launched into series has an estimated service life before overhaul. Sometimes it is openly indicated in the repair manual, sometimes it modestly appears only in internal technical bulletins for service stations. It should be understood that the figure indicated on paper is very…