&gt; I have no idea what makes a diesel die.<p>Mechanical wear, the rings don&#x27;t seal as well against the cylinder walls as they used to. Valves don&#x27;t sit in their seats as tightly as when new. And so on. As for other problems, I already listed a few. Think of the niggly things your last old car had. A Tesla, diesel, or any other car is not immune to those problems.