Hello- Help me confirm this please as I'm getting ready to flush the coolant. I thought 50/50 already contains water and actually has
a message on the container to "do not add water" yet this write up suggests that we take 50/50 and mix that with 50% water? am I reading this correct? I want to make sure I'm not adding too much water. And it's distilled water correct? Is this the most updated DIY for engine coolant flush?