Merc-O-Matic transmission

Asked by cofloater Aug 01, 2010 at 12:02 AM

Question type: Maintenance & Repair

I have a 1957 Mercury Montclair.  It originally called for Type A transmission fluid.  I think Ford changed to Type F in the early 60s.  Can anyone tell me what currently used transmission fluid would be best for this car?
thanks

2 Answers
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GuruNDPXY answered 5 years ago

Yes, my 65 montclair mercomatic MX was near ruined by type F. Dextron did not do it either. did not shift good at all. Put a half can of berrymans in it just so it would shift again I still do not know why the secret of what fluid it came with other than perminant fluid they said but other than this number, No info. R106A M-2C33-D numbers found in the owners manual and the shop manual. So Type A is my last hope. Thank you very much for this info. Paul

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GuruNDPXY answered 5 years ago

I found it. Valvoline VV3246 full synthetic works perfectly. Shifts just like new, for the Merco-matic Mx

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