Diesel Engine Technology covers the design, construction, operation, diagnosis, service, and repair of both mobile and stationary diesel engines with a simple-to-understand presentation. Content relates to on- and off-road vehicles, as well as marine, agricultural, and industrial applications. This text is a valuable resource for anyone involved in the service and repair of diesel engines, as well as those preparing for ASE Medium/Heavy Truck Test T2--Diesel Engines, Test T6--Electrical/Electronic Systems, and Test T8--Preventive Maintenance Inspection. Content is correlated to the Diesel Engines, Electrical/Electronic Systems, and Preventive Maintenance Inspection (PMI) sections of the 2018 ASE Educational Foundation Medium/Heavy Duty Truck Task List. ASE Educational Foundation Required Supplemental Tasks and Workplace Employability Skills are covered. The latest standards for diesel engine oils, ultra-low sulfur fuel, and biodiesel fuel are included.