jlhibbetts
12-10-2009, 01:54 PM
My coach Hydro Hot system uses antifreeze for interior heating. The antifreeze already in the system is green in coloration, suggesting normal automotive antifreeze. The web site shows a pink color boiler antifreeze is supposively to be used in the system. Has the "Boiler" type antifreeze ever been green in color? I'm suspecting that the coach left the Gulf Stream factory with regular antifreeze in the system. I need to top off the expansion tank. COMMENTS ANYONE?