I did mine and it was very easy. Around 35K miles and the coolant was
I drained the radiator into a pan for disposal. I got out about 4
quarts this way. Plastic drain plug is on drivers side of bottom. I
then ran water through the expansion tank until clear water ran out of
the radiator drain. I closed the drain, filled the system with water
and ran the negine until it warmed up and the thermostat opened, let
it cool some and and drained it again, like the first time. To get
more out of the block.
I closed the drain cock and filled the radiator with concentrated
coolant - a bit less than one gallon of coolant will do. 6 quart
system, I think. Fill the rest of the way with clean water (distilled
is preferred), start the car and watch the reservoir level for a few
days, as air comes out. I found that it drained and filled well. No
air pockets that can make it overheat.
I used Prestone green as the original stuff was green.
You can also pull the thermostat, replace the housing and you won't
have to wait for it to warm up, flush, replace 'stat, fill with
coolant and go.