What's with all the different antifreeze colors. My GF took her car to the quicky-change for an oil change. They tell her that she has the wrong kind of antifreeze - her's is green they say she needs orange. I bounced around on Google and found a lot of conflicting information. Most say that there are differences in antifreeze and that the different types are made for specific makes of vehicle. What I couldn't find was agreement on whether or not it is critical that the correct type be used. Some say change immediately, others say it's best to use the proper type but it doesn't really matter and others say it doesn't matter at all. The vehicle is a 99 GMC Yukon. Any advice??
posted by Carbolic on Dec 27, 2004 - 8 answers