Ford Motor Company has used four different types of coolant since 2002. Here are the colors as well as the relevant models:
Light Green: Used in all models up to 1999 and some models from 2000 through 2003
Yellow: Used in all models from 2004 through 2008 and some models from 2002 through 2013
Dark Green: Used in some models from 2009 through 2012
Orange: Used in some models from 2010 through 2013
For the 2013 models, only the E-Series Econoline vans and some motorhome chassis use the yellow coolant. All other vehicles use orange coolant.
Of course, always check your owner’s manual for the most specific information about your vehicle’s coolant needs.