No i trust this guy and he is the owner. (And likes me). When i dropped of the parts with the car he already had 2 Subaru coolant jugs so i know he bought the right stuff. I used Peak 50/50 coolant before. If he didn't flush it and just drained it with a little left over, could the two have mixed and caused some kind of a chemical reaction? It smells like coolant.
And it was the Subaru Long Life (green) coolant as you can see.