Several outlets have reported on the best diesel engines, with some focusing on those used in pickups and others discussing diesel engines more broadly, including those used in semi-trucks. The reports highlight various diesel engines, including duramax and v8 models, that are considered to be among the most powerful, reliable, and long-lasting. The specific rankings and lists of top diesel engines vary across the outlets, but they generally emphasize the toughness and endurance of certain diesel engines.