Made in Canada. Got to be good stuff.
And herein we find the root of the controversy. How much boiling is needed to evaporate the water to get the "right" concentration. The boiling temperature goes up progressively as the concentration increases.I didn't know they had coolant trees in Canada. Wonder how much fresh coolant sap you have to boil to get one gallon of concentrated coolant?
Then, and here's the truly amazing irony, you then add back the same amount of distilled water that you boiled out to make the concentrate. Doesn't this curl and scrunch your eyebrows into double question marks?? 🙄