11 June 2017 - Coolant Overflow tank

I use the washer fluid reservior as a coolant recovery tank.  It is working out pretty good so far.  Today while I was checking a few things under the hood I noticed that there was a layer of rusty colored film on one side of the container.  I flushed the container and added distilled water.  Need to keep an eye on that to see what is going on with it.