So, I know from my engineering education and spending time here that every internal combustion engine uses a very small amount of oil with each power stroke.
The reason people are adament that their engine doesn't use oil is because the crankcase is also gradually filling up with unburnt fuel, or water that gives the dipstick a full reading even if the ratio of 100% engine oil in sump is not as it was at last change.
So my question is: For an engine with no external leaks, can there be a measure to determine what level of oil depletion is to be expected from the power cycle burn off x number of revolutions x number of cylinders?
Or is it all: let's build it and see what happens?
The reason people are adament that their engine doesn't use oil is because the crankcase is also gradually filling up with unburnt fuel, or water that gives the dipstick a full reading even if the ratio of 100% engine oil in sump is not as it was at last change.
So my question is: For an engine with no external leaks, can there be a measure to determine what level of oil depletion is to be expected from the power cycle burn off x number of revolutions x number of cylinders?
Or is it all: let's build it and see what happens?