On Tue, 27 Aug 2013 15:48:11 -0400, Metspitzer
wrote:

Adding pure antifreeze would have been just about the right amount
actually. Half of the system should have been 7 quarts of pure
antifreeze. I put 4 quarts of antifreeze and 3.5 quarts of water.


Actually 7 quarts would have been way off.

Only after knowing how much coolant drained out would you be able to
calculate the correct amount of water and antifreeze... that is
assuming the coolant was at the correct level AND the correct ratio to
begin with.

In your case after you drained out half of the total volume of the
system, with the above assumption, you knew you had 3-1/2 quarts
remaining of water and 3-1/2 quarts of antifreeze. Because that is
precisely half of the system volume that is precisely what needed to
be replaced... 3-1/2 half quarts of water and 3-1/2 quarts of
antifreeze.

Ain't it great to be lucky. You couldn't have got much closer.

Even a blind squirrel finds a nut once in a while. ;-)


On Tue, 27 Aug 2013 14:58:23 -0400, Stormin Mormon
wrote:

I've found on my vehicles, that the water remaining
in the block is about half the system capacity. You
ought have added pure antifreeze, until you got enough
in to be half the system. I'd have tried to fit 7 or
8 quarts of pure in, and put the cap on and run it.
check it with a float later, and decide if you want
to add water or pure.

If the vehicle has overflow tank, fill that to the
"full hot" line and check it in a week or so.

.
Christopher A. Young
Learn about Jesus
www.lds.org
.

On 8/27/2013 1:18 PM, Metspitzer wrote:
Since I do not know of an "active" car repair group, maybe some home
repair people might know the answer. I sure would like to know of an
active car repair group.

Anyway, I drained the radiator on my 96 Mustang GT. My car manual
says it holds 14 quarts of fluid. I had a gallon (4 quarts) of full
strength anti-freeze. I wanted to shoot for a half and half solution.
According to my math, I should have been able to pour the entire
gallon in the radiator and fill the empty container with a gallon (4
quarts) of water. That would have taken me to 8 quarts. I should
have been short 6 quarts of mix.

The car took the 4 quarts of anti-freeze and most of the gallon of
water. I am guessing that the engine still had 6 quarts of water in
the hoses or in the engine somewhere.

What is the proper way to completely fill the radiator? Car running?
Heater on?