Why does my 5.0 love to run at 210F??

[Mach 1]

Originally posted by twilightcall
Chris thanks for the Great info. Very informative. I live in Southern TN. Would 20% coolant work even in the winter time down here. It can get down to 0 deg. but rarely does. It mostly gets down to 20-30's. Just wondering if I would need to add more coolant for the winter? Thanks.

You can buy a tester tube that you suck up some of your mixture and it tells you what temperature you are protected to. Any auto parts store or wally world has them too..it has balls that float and coresponds to mixture level and temp. of freezing.