forddieseldoctor Posted April 15, 2020 Share Posted April 15, 2020 My parts guy handed me a partial case of motorcraft full synthetic mercon. From what I understand I can use it in place of regular mercon in my 4r100 trans in my superduty. Can anyone verify this? Quote Link to comment Share on other sites More sharing options...
Keith Browning Posted April 15, 2020 Share Posted April 15, 2020 If it is "Mercon" I don't see if there is any difference between regular and synthetic. I read many people use synthetic in their 4R100's. As long as it's not LV or UV I imagine it meets the specs for the fluid. Quote Link to comment Share on other sites More sharing options...
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