¡Look at (and READ) the pink stuff jug!
On the advice of a friend that used to be a product engineer for a major OE chemical supplier, I have started reading the jugs of RV anti-freeze that I have. The old ones were straight Propylene ...
Forum Discussion
For any product, you can get best results and most value using three simple words: "Read the label." It is amazing sometimes what information is printed there.
