Prestone LongLife Orange

[David Miller]

I recently came across this coolant (Prestone LongLife Orange) in the local
auto store, and it seems to have the same phosphate free (and silicate free)
characteristics of Pentosin.  I need some more coolant, and was wondering if
this is safe to use?  The nearest Audi dealer is about an hour and a half
away, and this would save a large amount of time.

Any opinions?

Thanks,
David Miller