"20% down from the top line"?!?!!? WTH does that even MEAN?? LOW is LOW. You've probably been running it low all this time. FULL means FULL. That means AT LEAST to the FULL mark. It's like a floor jack, not a motor.
Garsh ... settle down. My trans dipstick has 2 lines, or 2 dots. Indicating a full level, and an "add" mark. At the add mark it is supposedly 1 pint low. And for a torqueflite it is recommended to NOT go above the full mark. Mine was roughly 20% below the full mark.
