Originally Posted by Fenwick223
The coolant in my 2004 is blue in color. When I stopped by the Chrysler dealer to get a gallon of fluid for "topping off" the system, the color of this fluid is "orange." According to the Service Manual, the gallon I got has the correct product no. MS-9769. What's the deal? I don't think your supposed to mix the two correct?
Green and orange are the traditional "factory fill" coolant colors. However, in there are original equipment antifreeze colors exist, including various shades of green, yellow, pink, red and blue.
The likelihood of color confusion and unidentifiable mixtures has been my problem before. The dye color used in coolant traditionally used to signify the type of coolant. I lend my old car to my bro when I used my dad's then he got it with wrong coolant type, confused of its color. It had affected its
Mercedes radiator's performance. So It's really important for vehicle owners to know what type of antifreeze is used in their cars' cooling system prior to having it serviced.
