My bad, I read your post correctly but by the time it got to the gray matter upstairs it interpreted the engine block coolant plug as the rad drain plug so I apologize for the confusion. I've done this (on my previous car) without draining the rad and that car had the antifreeze fill-cap not on top of the rad but near the engine (V-6 engine) which was right over the thermostat and I was able to use a turkey baster and remove almost enough coolant so removing the engine block coolant plug did not result in half a gallon of antifreeze hitting the ground. Thanks for setting me straight as the second cup of Joe had not set in when I replied. =)