Antifreeze question

[John Slade <edalsj@igs.net>]

Can anyone advise a reliable method for determining whether one is
dealing with ethylene glycol or propelyne glycol? Unfortunately each
needs its own tester to provide a reliable indication of freezing point,
and, living in the frozen north, I like to be sure that my engines are
properly protected.

Thanks

John Slade
Manotick, ON