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

*Looks at all the Prius taxis*

*Shurg*

I guess most companies just don’t want to put the funds into R&D or something so the engines can hit the sort of mileage most cars will never see because other problems results in them getting scrapped. Outside of the US, a lot of people aren’t driving particularly far day to day.