The coolant is a nice green. When I got the car the fan shroud was cracked and they had an external cooler for the trans ( the trans cooler lines were 80% cut up rubber tubes which the return one was pinched and overheating the trans. I put new lines on and fixed that) after taking that cooler off found a baseball size hole in the radiator so I got an aftermarket radiator, removed the old one. Flushed the block with a garden hose both directions until I got clear water. Put a new one in and ran it all last year, even to Carlisle and back no problems. The fan is just a bolt on to the water pump. No clutch, no fan shroud.