I got a jug of engine ice today, Do I need to bleed anything or just drain the old stuff, and pour the new stuff in as it works itself through??

 

I would just empty out as much as you can, I think you can drain the radiator and some other stuff(water pump?).....and then just pour it back in, and keep filling until it is full...I would wait for a answer from Ken(modquad) before I did anything, he seems to know a lot about coolant, and I know he has done the process before.

 

i just drained the radiator and the waterpump... worked fine for me.
your also supose to flush it with water... but to be honest i dont think it makes that much of a difference aslong as you get the old stuff out the best you can, it will be fine.