Description
I normally buy concentrated (100%) anti freeze engine coolant. Twice now I have tried to mix it to a 50:50 mixture with water, like it lists on the jug. Both times the freezing point is not a s low as it is supposed to be!!!! Today I bought a new tester to make sure I was getting a correct reading. Both testers gave the same reading of about -18C instead of -34C for the 50:50 mix. I had to add much more 100% anti-freeze to achieve the -34C freeze point. Why is this happening, am I getting ripped off when I buy the concentrate??? Project Farm needs to investigate!