whats up everyone, this is my first post.(newb here, yaaay !!) I was just looking for this topic because I need to flush my tranny as well. does anyone know how much type IV I might need to do this? I've heard our tranny only holds about 2 quarts, but to do a flush you need to drain and fill about 3 times... is this correct? Also, does anyone know if the Toyota dealership carries this, or do I have to go to Lexus? thanks..