I've got 200,000 on my Jetta, I decide to change the 5spd manual transmission fluid. I drain the transmission and notice only a small volume comes out. My service manual states it should hold 1.9 quarts. I thought it strange so I measured the oil i drained with a baby bottle. I drained 20 oz. I begin to refill with new fluid. At somewhere around 3/4" of a quart it starts runnig out the fill hole. I stop, drain the fluid again and measure again with a baby bottle. The second time i drained it, i jacked the right side of the car up way higher than the left to try and get it all out. I got 21oz the second time. What gives? Why didn't it drain the ~64 oz (2 quarts)? Is my service manual wrong?