I'm gonna change the coolant along with all the other fluids on my '07 700EFI tomorrow as part of "spring maintenence". I haven't crawled under it yet to see where to drain the old coolant. I assume there must be a drain plug in the radiator, and one in the engine block? Anyone know what's involved in getting to these drains, and specifically where they are located? How about any issues with getting airbound when I restart the engine after the coolant change? Any tips here would be appreciated............

 

As far as refilling it goes, I fill it and run it with the radiator cap off to let the air bubbles out and keep topping it off until it doesn't drop anymore. My GUESS would be the drain is on the rear of radiator on one of the corners.