Coolant and yes I have searched and read

[WorkInProgressK]

Originally Posted by Nine8Six

These porsche cars actually do!

Quick question; what is the cast AL type of your engine case/heads? the composites used for the gaskets, tank, fittings, hoses, what are their chemical compositions? Do you know?

Take your trusty Porsche Eng's advice when he says you should use, and only use, Porsche approved fluids my friend. (No-No Wallmart weekly specials allowed loll)

Besides... all of the extra profits they make while robbing you with their great TM does in fact back right into R&D. Meaning better cars for our next generations (or silly EV cars, whatever). Support the Brand!!!

Well if they sold in the USA they had to follow the SAE standard. J814: Engine Coolants - SAE International

Al, they are all corrosion resistant: Aluminum VS. Copper-Brass Radiator: Corrosion Susceptibility
Headgaskets usually steel ring is touching coolant.
Hoses follow a standard. For example a different hose J30R6 for fuel.
Tanks, plastic most likely ABS.
Fittings if they are not steel or cast allow or ABS

Walmart is just a retailer, you could by the same thing at CaCanTire if you want.

All that the OP needs to know is that both fluids are not compatible. They will all provide the protection needed at different costs.