I made a big mistake. I flushed the tranny fluid and used Mercon V. I know I have a 4R100. How this happend is my oversight. I did two other vehicles that day and I thought I use the right stuff. One '92 F150 and a '99 merc sable. Question is. Will this damage the tranny? If so, how?
The ford powertrain engineer I talked to awhile back said to me that the E4OD/4R100 was designed to have no friction modifiers in the fluid. I don't know what to make of this random spec change other than I'm stockin up on Motorcraft Mercon.
I was on the website (Factory Teck) for the heavy duty rebuilt 4R100 and it said not to use Mercon V in the 4R100. I bought a case of Mercon and put it next to my bottle of R12 freon for my 89' Bronco. One week V is bad for 4R100 and next week its OK, what's that about. Like I feel I can trust Ford to look out for my welfare once I hit 100K plus.
This article supersedes TSB 01-15-7 to update the vehicle application chart.
MERCON(R) Automatic Transmission Fluid is being replaced by MERCON(R) V as a service fluid.
Beginning immediately all automatic transmission / transaxle applications requiring MERCON(R) can now be serviced using MERCON(R) V or MERCON(R) Automatic Transmission Fluid or dual usage fluids labeled MERCON(R) / MERCON(R) V. After July 1, 2007, MERCON(R) Automatic Transmission Fluid will no longer be manufactured, therefore, availability of this fluid will only continue for however long it takes to deplete what remains in inventory.
Service automatic transmissions requiring MERCON(R) with MERCON(R) V or MERCON(R) Automatic Transmission Fluid or dual usage fluids labeled MERCON(R) / MERCON(R) V
Haynes & Chilton's manuals, MERCON/DEXTRON III ,they just shortened the name along with many others out there (I googled lol) Found allot of articles that had the 4R70W's all get 5 , but mann I'm telling yuh, when it comes to the 4R100/E4OD I can't find a straight answer any ware, I'm not sure anyone knows for sure. As the manuals state MERCON III which is just short for MERCON/DEXTRON III , It's not just "MERCON" What else would reason? Crap!! Maybe it is, Idunno!!
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