Based on Ford's official position,FOR A NEW FLUID CHANGE OLD ORANGE ANTIFREEZE WSS-M97B44-D (BASE PART 19544), FROM 1ST OF DEC 2023, ALL DIFFERENT ANTIFREEZE SPECIFICATIONS HAVE BEEN REPLACED BY ONE AND THAT SHOULD BE USED, THIS SHOULD NOT BE MIXED WITH THE NEW YELLOW ANTIFREEZE WSS-M97B57-A1 (BASE PART M97B57), WSS-M97B57-A1.
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