Diesel engines used to run forever but the new stuff is a different story. Modern diesels have high pressure injection pumps that are crazy fragile and every failure sends metal through the whole fuel system. Then you have exhaust getting fed back into the intake that loads the engine with soot and carbon. Add in complicated emission systems that clog up, fail, derate, and leave you stranded. In this video I talk about why old school diesels were simple and reliable while modern ones are packed