Changing A/F in a 3208

[birdshill123]

Eric: Thank you for that reply. I have done a lot of reading on A/F.
Used to be easy when you just went and bought a few gallons
of "Prestone". My BB Blue Box says that the cooling system capacity
is 61 quarts for the engine and 85 quarts if you include all the
heaters. That means there is 24 quarts in the heaters. Are you saying
you can buy Cat ELC A/F for a mere $10.00 a gallon?? Seems very
inexpensive. That is a word Cat does not understand. In the files
section in one of the Forums there is a Cat document that covers oils
and A/F. They say you can use any of 5 different coolants:

Non Cat ELC 3 years
Cat ELC 6 years
Cat Deac 3 years needs SCA
ASTM 6210 2 years needs SCA
ASTM 4985 1 year needs SCA

They all require Cat SOS testing at half life.
You CANNOT mix Extended life coolants (ELC) with other A/F. So if you
used the long life Cat and did not drain the heaters and flush you
could have a problem. I remember reading about certain mixtures of
A/F turning into a gel. A PHD in chemistry is needed to understand
all of this. Has anyone in this forum tried Final Charge??

Bruce
1988 FC35