The case of the missing anti-freeze

[njsteve]

By the way, the car has to be running during the test.

Oh, and the fluid will go bad and turn yellow after a few years sitting on your shelf, or if you leave it open near a running engine. That was the "fee" my buddy charged me for letting me use it - I bought him a new bottle of the blue testing fuid for $7 at the local Napa store.