I learned something new the hard way... (coolant/radiator tip)
I've changed the coolant in a C5 countless times... most of the time is was when I had the Dewitts radiator in my Z06 w/ a traditional petcock.
Last night I was flushing the coolant in my red vert and learned the hard way that if you pull the petcock out too much it'll come all the way out... and that 200+ degree coolant burns a wee bit.
I had flushed the coolant and accidentally overfilled it when bleeding the air because I mistook a line in the coolant tank, from age, for the level. I couldn't find my garage turkey baster to suck some out so I decided to drain a smidge out the bottom... in doing so the petcock came all the way out of the radiator...
After much cursing I put it back together and re-filled, re-bled it all, then had to clean up a garage floor covered in coolant/water.
Fun times....
-B
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