I mean yeah you could do it either way actually. I didn't have any leaks or spills to worry about because I double checked everything anyways. Either way you need to watch that temp gauge, and oil gauge. Keep the temperature below 200 and keep the motor revved over 2000 RPM for at least 15 minutes to get the lifters spinning and that's all there is to it. After it is all said and done get you a radiator coolant tester (floating balls type) to determine you freezing point of the coolant water mixture. Depends mostly where you live.
