Hi
Just found this out.If you have a Ford deisel never put Mercon 5 into the tranny.Even though some Ford manuals and dealerships recommend it.It will cause early tranny failure.Use Mercon 3 only.Mercon 5 is for tranny's behind a gas engine and Ford didn't change it in the owners manual for deisels.
Just found this out.If you have a Ford deisel never put Mercon 5 into the tranny.Even though some Ford manuals and dealerships recommend it.It will cause early tranny failure.Use Mercon 3 only.Mercon 5 is for tranny's behind a gas engine and Ford didn't change it in the owners manual for deisels.