Flush it out and install the correct formulation. Most types do not do any long term damage if mixed.
Red, five year, hoat type.
Red, five year, hoat type.
Red, 5 year, HOAT type.
Red, 5 year, HOAT type.
Red, five year, hoat type.
Red, 5 year, HOAT type.
Red, 5 year, HOAT type
Red, five year, hoat type.
Red, 5 year, HOAT type
Red, 5 year, HOAT type
Red, five year, hoat type.
Red, 5 year, Hoat type. Do not use DEXCOOL.