Yes, I dropped hot (around 60 C) fluid from the drain bolt and after pan has been opened, from the pan to the 5L measuring jar (I called it the Bunnings jar). I was awaiting for several hours to make sure that the fluid in the jar and new ATF WS will be at same ambient temperature. Meantime I have installed the pan and new filter back. In jar it was around 2.8 L of old fluid at temperature of 22 C in my garage. Than I have injected exactly 2.9 L of new ATW WS to the transmission (for 100 ml more than was). So, I did not check the fluid level because I do not have the controller to connect it to the car computer. I do not have even simple temperature laser gun. So, it was a risky exercises, but I have used simple logic - substituted absolutely same volume of drained fluid with same volume of new fluid and make sure that these two fluids have same ambient temperature. Plus additional 100 ml. So far, so good. After 50K will do it by more scientific way - will buy a controller to connect car's computer and use the drain plug to get the level in pan at 42.5 C.