But the benefits (and downsides) of doing or not doing an oil change can be measured. You can run tests on engines that skips or delays oil changes and see what

But the benefits (and downsides) of doing or not doing an oil change can be measured. You can run tests on engines that skips or delays oil changes and see what the effects are and measure them in dollar amounts. Like cost to replace / repair the engine prematurely. Sure YMMV but you can get a rough estimate. What is the rough cost in dollar amount if I don’t do this refactor?