I realize that DCA2 is a nitrite, borate & silicate SCA and that excessive levels of nitrite/borate SCA can become aggressive to lead solder and aluminum. And that DCA4 is composed of nitrite, molybdate, phosphate and silicate. I have several pints of DCA4 but my cooling system is charged with the SCA DCA2, so my question is can DCA4 be added to my system without fear of cross contamination issues to bring the SCA units up to Cummins specs?
Bob Retired Army Traveling alone now.
2008 Camelot 40 PDQ 4 slides ISL400 towing a 2016 Dodge Ram 1500 4x4 Quadcab
Western MT in summer, AZ, NV in winter