Eli5: Why are petrol engines not built like diesel engines in terms of reliability?

Question

Diesel engines easily run 400.000km especially Mercedes cars but petrol will give up way sooner

In: Engineering

Answer 1

I regularly get 300,000 miles 483,000 km on my GM 3800 petrol cars. As a regular member of pretty much all top 10 best engine lists this is to be expected. I don’t know that there’s any currently selling engine that can go this far.