Originally Posted By: Dan55
Toyota Pink SLL as far as I know comes pre diluted 50/50, they might make a concentrate in qt bottles but I am not aware of it. Please enlighten me.
In colder parts of Canada (perhaps all of Canada), it comes 55% coolant pre-mixed. Barely gets -40 protection. I'd rather get to at least -45C, but this is better than nothing. Zerex Asian is otherwise attractive, but the 50/50 mix rating of only a -36C freeze rating is useless to me, so unless it's available full strength, I'll be stuck with Toyota SLL.