Why do diesel engines seem to outlast gasoline engines? Shouldn’t they be built with the same stress safety factors built in and fail at around the same rate?

Question

Edit: Specifically referring to passenger vehicles and consumer trucks, not commercial vehicles that i assume would be built to go much longer anyway.

In: Technology

Answer 1

my guess is that it has to do with the fact that they are simpler. (no spark plugs, no spark timing, etc) so there are fewer parts that can fail