Good advice here, the Orange was intended for all aluminum engines, but as correctly pointed out it caused problems.
Stick with the green coolant. About two years ago the government mandated a change to non-toxic antifreeze mainly because of pets drinking up the sweet stuff that may be spilled or dripped.


1 1955 Chev one ton. 261 engine

3 1962 Chev c-10 261 engine
4 1966 Plymouth VIP 5.7 GenIII Hemi
5 1966 Imperial Crown Coupe 440 engine