[Roadsters] Coolant

[Jerry Krakauer]

This summer I'm planning to bring SRL 00099 out of  30+ year slumber.
With cast iron block, aluminum head and copper/brass radiator , What current (OAT, HOAT, POAT, IAT, or Si-OAT)formula antifreeze would be best for compatibility?
P.S. Back in the day the choice was easy.. One type each of identical  either Zerex or Prestone 🙂. (Or even just water with a can of corrosion inhibitor)

Jerry Krakauer

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