Before choosing fluid note that engine code RFJ (EW10A) and volume of 2.0 were installed to your car in 2007. You should be careful at choosing liquids for Citroen especially for vehicles having 2.0 motor. For 2012 C4 engine it’s necessary to get normal temperature balance. For sufficient use of Citroen C4 you need to use suitable antifreeze. Only Red antifreeze type is suitable and you’ll need 0-0 liters of it.
If you choose other than Red coolant or use less than 6 liters, you can’t expect normal work. Providing you keep the rules 2.0 motor installed in C4 of 2008 year will be long lasting. It will be advantageous to follow Citroen’s rules for 2007 C4 service. Every Citroen owner should remember that engines with code 6FY-EW7A are quite demanding.