I have Toyota's A240L 4-speed auto transmission which is hydraulically controlled. I have the TV cable adjusted according to the spec. and I see that the atf level on the dipstick is a little higher than F mark. color is nice pinkish no odor. What is the difference between Dexron II, IID and IIIH? without opening the pan and just unbolting the drain nut, how much atf should i pour?