oil overfill for track

[ozmdd]

I suspect that Toyota realizes that most consumers are not careful enough to measure out their oil to the tenth of a qt or L, and most often round to the nearest whole unit. I also suspect that they design their cars with some margin for error, so that a 2 or 3 tenths overfill doesn't destroy the engine. I wouldn't recommend intentionally overfilling by a significant margin, but I think it stands to reason that a small overfill is safe. Isn't that why they put a RANGE on the dipstick?