So, it seems that on this forum, the Zerex G-05 is the most popular alternative brand to the MB coolant. I've looked in a few places around town (two O'Reily's and one NAPA) and can't find the Valvoline Zerex coolant.

Are there folks out there that have tried the other brands of HOAT coolant out there? Such as:
Artic Blend G-Plus
Fleetguard Fleetcool EX
Ford Motorcraft Premium Gold
Peak CF-EXL Extended Life Coolant

I think one of these I could find easier locally. Anyone want to chime in with experience or other research based knowledge?

I found 3 cans of r-12 at a flea market saturday for $15 (all weigh-in correctly) and want to get the cooling system flushed and revitalized before i mess with the AC.

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'82 240D 224K miles manual transmission
mods: wooden 4by4 bumper, EGR delete and older EX manifold without EGR port, glass pack muffler (cheapest replacement muffler), rebuilt bosch injectors with Monark nozzles

working on: aux electric fuel pump, coolant/fuel heat exchanger/filter head, afterglow, low oil pressure buzzer/LED