a great deal depends on the particular design of the engine. You can't throw a universal statment out there like both of you did and have it apply to all engines. On some engines it may help to run less oil, and some it may not.
I run my Toyota half qt low. that's because that's where a 5 qt jugs puts the level at and it doesn't use oil so i don't worry about it. I consider that a better option then putting 6 qts in, which a lot of people do. course I could put a half qt in, but then I would have a half qt of oil laying around.As long as it's between the safe marks , it's good.
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