It’s not. My dad was diesel mechanic and has owned several. My best friend fixes cars for a living and own 6 diesels (lol) and he turned me on to TDIs. As he says without hesitation, “they’re the best cars.” And they are. My sister has a TDI and my brother has 2 also 😂 my dad and another friend of my mine all own ford 7.3 liter diesel from 2001-2002. All have been insanely reliable.

TFSI aren't too shabby either.

Also I’ve done a lot of research outside of personal anecdotes on diesels platforms. It’s the technically superior technology. Gas platforms are fine, just not as good.

meh, tradeoffs you wouldn't run your car on fuel oil short chain hydrocarbons and ICEs built for those have their uses