Yes,it's the new stuff for alloy and steel blocks.I also use disteilled water,it's what all the coolant manufacturers recomend.
That being said,I ran a 261 with an aluminum water heated intake for 8 8-10 years on green coolant,changed it once in that time period,no problems like I said.
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Disclaimer,my experiences may be different that yours

70 Triumph 650 cc ECTA current record holder