Here is my latest correspondence with Ford:
Dear Sonia,
Thank you for the reply, but I feel as though I was brushed off. I asked a question and wanted facts from the people who engineered my transmission (FMC) and who will give answers with responsibility. If I had wanted someone's opinion who is confused about this topic and give carefree answers that they will not back up after my transmission has been destroyed by using the wrong oil, then I would have asked the dealership to begin with.
But just to humor you and make me more angry I called three dealerships on the way home last night. Would you believe I got three different answers? Here are my results.
Dealership #1, Matlock Ford, Franklin, Indiana. Small town dealership near my work who's service department I absolutely do not trust. They said they put Mercron V in all of the trucks. I asked if he could provide me with a TSB, and he said no. I asked him how he knew this, and he said his boss told him so. I wonder what they put in the TorqueShift?
Dealership #2, Ray Skillman Ford, Greenwood, Indiana. Very large Indy suburb dealership near my home. They said to use Mercron 3. There is no such thing as Mercron 3!!!
Dealership #3, Wabash Ford and Sterling truck sales, Indianapolis, Indiana. This is a truck only dealership, and this is where I purchased my truck. They asked me what my dipstick said, I said Mercron, they said to use Mercron.
As you can see, this is a very confusing topic and the dealerships are more confused than I am. I want a straight answer from Ford, can I now use a dual rated Mercron / Mercron V ATF fluid in my 4R100, such as the new blend of Mobil 1 synthetic ATF fluid?
Thank you,
Philip Searcy
Dear Philip,
Thank you for contacting the Ford Motor Company Customer Relationship Center regarding regarding your transmission fluid.
The Customer Relationship Center does not function as a technical or diagnostic repair facility. Inquiries of a technical nature are best referred to our dealerships because they have certified Technicians to serve as our experts with Ford and Lincoln-Mercury products, and the diagnostic tools and equipment to assist you. They are in the best position to discuss and review your request and in the rare case where a staff member of any dealership is unable to answer a technical question regarding one of our products, there are technical resources available exclusively to them from Ford Motor Company where answers may be obtained.
We consider the satisfaction of our customers one of our most important objectives. If you have any other inquiries or concerns, please feel free to contact us and we will be happy to address them for you.
Sincerely,
Sonia
Customer Relationship Center
Ford Motor Company
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First Name: Philip
Last Name: Searcy
Inquiring About Own Vehicle: Yes
VIN : 1FTNW21L74ED46502
Mileage : 25000
Year : 2004
Make : Ford
Model : F250
Questions: I have a 2004 F250 with 4R100 transmission. At the time the
manual was printed, it said that I could not use a 'dual usage
transmission fluid rated for both Mercron and Mercron V'. In the
meantime, Mobil, and most all other manufactures, has come out with new
fluids that are dual rated. Mobil now has a new Mobil 1 synthectic ATF
rated for Mercron and Mercron V. Can this new formulated fluid from Mobil
be used in my 4R100? Thank you. Philip.