One quart per 1000 mi in today's automobiles is unacceptable to me. Growing up in the 50's and 60's cars USED oil. By used I mean burned a little, seeped a little, leaked a little and blew some out the non existent and early PCV systems. So a quart / 100 mi might very well have been acceptable for that era. I have a '17 Lexus and a '15 F-350 diesel. I change my oil myself using the factory recommended oil weights in a synthetic oil. My car has 70k+ miles and my truck 130k+. Neither uses any oil between changes. In fact I've gotten so careless in checking that I almost never do check it. I know that might come back to bite me in the BUTT one day but that's the way it is.
That's my story and I'm sticking to it.
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