My Chevy and Honda get the oil changed at the regular intervals and the oil has been black for as long as I can remember. Now at 190k and 140k and they run fine. All my cars have had dark oil. Even as a kid with my parent’s cars the oil was dark.
Bought a used Toyota Highlander at 100k. Oil still looks like honey after 140k!! It is pretty amazing (to me anyway)!
Not mine. I don’t allow my engine oil to get black. slightly dark gold maybe but still transparent on the stick. That’s it. It’s real cheap insurance to change your oil. Life blood of the engine.