What Replaced MERCON?
Lead Driver
Joined: May 2003
Posts: 9,303
Likes: 48
From: Lyndonville, Vermont
I think the first tranny to call for it in the super duty's was in 05..Not the 4R100. Actually it was mercon LV In the TF tranny's .I think 04. In 07 ford authorized Mercon V for use in all.the 4r100.
Correct me if i am wrong..
Correct me if i am wrong..
Super Moderator
Joined: Aug 2003
Posts: 25,479
Likes: 742
From: Isanti, MN
Not anymore.
Originally Posted by TSB 6-14-4
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.
Lead Driver
Joined: May 2003
Posts: 9,303
Likes: 48
From: Lyndonville, Vermont
When mercon V originally came out it didn't have the correct mix for use in the 4r100 tranny's. There were seal issues.cluthch issues etc.Then ford modified it to make it backward compatible for use in the 4r100. In no way do you have to use it but you can.
Dick
Dick
Senior User
Joined: Apr 2013
Posts: 141
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From: Canada's Wet Coast
TSB 06-26-1
TSB 06-14-4
TSB 07-1-7
There were more but don't feel like looking them up
Basically there was one or two for each type of fluid usage. Auto Trans, Standard Trans, Power steering, Transfer case
TSB 06-14-4
TSB 07-1-7
There were more but don't feel like looking them up
Basically there was one or two for each type of fluid usage. Auto Trans, Standard Trans, Power steering, Transfer case
FTE Leadership Emeritus
Joined: Sep 2000
Posts: 23,174
Likes: 1,679
From: Stephensville WI
The 4R100 requires Mercon or Mercon V.
In each case, there are compatible synthetic fluids like Amsoil or Royal Purple.
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