Are oil changes and fuel filter changes more important in a diesel or gasoline engine?

This question is from my daughter's science extra credit project.



Thanks!
Are oil changes and fuel filter changes more important in a diesel or gasoline engine?
A Tractor Trailor goes 25 000KM on an oil change

A car goes 5 000KM on an oil change



Diesel engine oils are heavier weight and have more detergents to keep the engine clean of soot %26amp; sulfur thats why the oil gets really black



Gas Engine emmit alot of acidity so the oil needs to be changed more often or the acid will eat the seals and metals





I change fuel filters on tractor trailors at every oil change while most people never change their gas filters





yvesrow1@yahoo.ca
Are oil changes and fuel filter changes more important in a diesel or gasoline engine?
they are important in both.
way more important in a diesel