For a transmission where the level is supposed to be checked with the engine idling & warm wouldn't is make sense to have the markings for "Engine Idling: Oil Warm" if there was only going to be one set.?They used to have two sets of level marks. One side was with engine running oil warm and the other side was engine stopped oil cold. Sometime in the nineties they stopped doing that on many if not most machines and only had the cold markings.