And the only way to know what to really do is study and learn get your ASE certifications and keep current on the ever changing information. Where as most people here it’s non evidence based information they share and should always be taken with the largest grain of salt possible.funny thing about this whole thread is most of the answers aretotally opinion based.
I have an idea,,, because even when you change the oil and filter you still leave some of the old dirty oil in the engine, just because you can't remove all of it no matter what, so you are still putting dirty underwear back on.
only difference is how dirty the underwear are .
only way to know if a filter is clogged is by testing and only way to know if oil is too dirty is by analysis.