That's what I figured, when I was a kid we had an old cast iron block that ran forever, then in later years I had a lawn mower with 3.5 HP Briggs, that thing used so much oil it would fog for mosquitos while I mowed.
That thing would run till it was outa of oil and lock up, let it cool, add oil and go again until it was outa oil again.
I used it for a couple of years like that and finally bought a new mower and put that one in the junkyard.