[I'm holding it upside down, oops]
(https://i.imgur.com/xXWGgwxh.jpg)
Looks like freeze point is around -45, Nitrite at B, and molybdate not in scale/out of range
Exactly. Just changed coolant yesterday. Put 16oz of SCA in then. The way I read it is I need another 16oz per 4 gallons?