Diesel mechanics technology/technician is a highly specialized field that involves the repair and maintenance of vehicles and machinery powered by diesel engines. This field requires extensive knowledge, technical skills, and practical experience to excel. Therefore, choosing the best college or university that offers a comprehensive education and training program is crucial for any aspiring diesel mechanic technician.

Here are the top colleges and universities in the world that offer the best training and education in diesel mechanics technology/technician:

1. Pennsylvania College of Technology (Penn College)
Located in Williamsport, Pennsylvania College of Technology offers a comprehensive diesel technology program that prepares students for a career as a diesel mechanic technician. The program includes hands-on training in diesel engine overhaul, powertrain, electrical systems, and truck and heavy equipment repair.

2. WyoTech
WyoTech is a respected vocational school with a campus in Laramie, Wyoming, that offers an excellent diesel technology program. The program includes training in diesel engine repair, heavy-duty drive train systems, and heavy equipment service and repair.

3. LATTC (Los Angeles Trade Technical College)
LATTC is a vocational school located in Los Angeles, California, that offers a diesel technology program that emphasizes hands-on training. The program covers diesel engine repair, truck and heavy equipment service, and preventative maintenance.

4. Universal Technical Institute (UTI)
Universal Technical Institute is a highly respected vocational school with numerous campuses across the United States that offer diesel technology programs. The programs provide students with hands-on training in diesel engine service, repair, and diagnostics of heavy-duty trucks and heavy equipment.

5. Ferris State University
Located in Big Rapids, Michigan, Ferris State University offers a comprehensive diesel technology program that combines theory and practical experience. The program covers diesel engine overhaul, drive train systems, hydraulic systems, and welding.

6. Lincoln Tech
Lincoln Tech is a reputable vocational school with numerous campuses across the United States that offers diesel technology programs. The programs include training in diesel engine service and repair, electronic systems, and preventative maintenance.

7. Northwest Technical College
Located in Bemidji, Minnesota, Northwest Technical College offers a diesel technology program that covers diesel engine repair, power train systems, and hydraulic systems. The program emphasizes hands-on training and real-world experience.

8. Oklahoma State University Institute of Technology (OSUIT)
OSUIT is a highly regarded college located in Okmulgee, Oklahoma, that offers a diesel technology program. The program prepares students for a career in diesel engine mechanics by covering diesel engine overhaul, drive train systems, and truck and heavy equipment service and repair.

In conclusion, choosing the right college or university to pursue a career as a diesel mechanic technician is essential. The schools mentioned above provide comprehensive education and training programs that cover all aspects of diesel technology. They offer extensive hands-on training, real-world experience and prepare students for a successful career in the field.