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Subject: "Transmission Fluid Type" Previous topic | Next topic
patch7984Thu Jun-27-13 03:24 PM
Member since Feb 13th 2012
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"Transmission Fluid Type"


          

This is a carry over of a side discussion of this link

http://www.markviii.org/htdocs/dc/dcboard.php?az=show_topic&forum=21&topic_id=82200&mesg_id=82200&page=

So Here is my Owners manual







So check your manual if your 93 is from the first six months production may not take mercon V

1993 Silver Mark VIII mod

  

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Replies to this topic
Subject Author Message Date ID
RE: Transmission Fluid Type
Jun 20th 2013
1
RE: Transmission Fluid Type
Jun 20th 2013
2
RE: Transmission Fluid Type
Jun 22nd 2013
3
RE: Transmission Fluid Type
Jun 23rd 2013
4
      RE: Transmission Fluid Type
Jun 23rd 2013
5
           RE: Transmission Fluid Type
Jul 30th 2013
7
                RE: Transmission Fluid Type
Aug 30th 2013
8

LeBoism8Thu Jun-20-13 12:27 AM
Member since Apr 22nd 2007
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#1. "RE: Transmission Fluid Type"
In response to Reply # 0


          

Wow, now that is interesting. You guys made me go find my owner's manual, and go out to look at the trans dip stick. I also have an early '93. The manual reads exactly the same as yours except it's dated November 1992. On page 356, it also calls for DEXRON II.
BUT,.......the dipstick clearly says on the pull handle, to use MERCON.

Anyways, I can't wait to see more input from many more of the long time(early '93) Mark VIII owners here. Thanks to all for bringing this up and discussion

  

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Mark of DistinctionThu Jun-20-13 06:47 PM
Member since Aug 05th 2004
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#2. "RE: Transmission Fluid Type"
In response to Reply # 0


          

Damn ! Knock me over with a feather. I would hazard a guess that you are are blowing everybody out of the water with this revelation. I know you have blown me away.

I took another look at my November dated owner's manual. Page 356 is there and it reads the same as yours and refers back to page 284 and to use what is printed on the dipstick. My dipstick is for Mercon.

You have a sticker on your trans pan that says Use Dextron. What does your dipstick say?

But then I look at my factory service manual, dated 1992 (no month) and it calls for Mercon. Not Mercon V. Just Mercon.


Now I'm wondering what a late '93 owner's manual says. Or even a '94 manual?

Here is one link I found about ATF.

http://www.cartechbooks.com/techtips/autotransfluid

" Mercon—introduced in 1987 and similar to Dexron II. Ford ceased licensing Mercon in 2007 and now recommends Mercon V for all transmissions that previously used Mercon. Mercon is a suitable replacement for Type H and Type CJ fluid, but not for Type F.

" Mercon V—the most common Ford ATF in late model Fords, it is very much like Dexron III. Should not be used in a transmission requiring Ford Type F.

Here is something sort of off-topic that I found interesting about old styles of ATF.

http://en.wikipedia.org/wiki/Automatic_transmission_fluid


" In the 1950s, 1960s, and 1970s, ATF contained whale oil as a friction modifier. But since whale oil would break down at higher temperatures, cars produced in the 1970s and later would not be able to use whale oil because of the higher engine coolant temperatures employed to reduce emissions and save fuel. A moratorium on whale oil at that time prevented the continued production of older ATF ....................

Whale oil ? In ATF? I have read a little bit about animal products (other than leather seats) being used in automobiles, but whale oil is a surprise.

Patch, you are in a small group of people to have brought something new to the board in a long time. This is right up there with Buck Rogers discovery on how to modify '96 IMRC actuator. Hope you decide to stay around for awhile.

I gotta go do some more research.

MOD aka "another Craig"
Mark of Distinction
1993 Light Mocha

  

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right on the MARKSat Jun-22-13 09:20 PM
Member since Mar 26th 2006
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#3. "RE: Transmission Fluid Type"
In response to Reply # 0


          

Mercon 111 did not come out till 1993. If you have an early book printed in 1992 guess what mercon 111 was not invented yet so of course it will state to use merc 11. Merc 11 lead to merc 111 then Merc V. I run Merc V in my 1993 trans no problems running 11's.

  

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LeBoism8Sun Jun-23-13 12:40 AM
Member since Apr 22nd 2007
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#4. "RE: Transmission Fluid Type"
In response to Reply # 3


          

> If you have an early
>book printed in 1992 guess what mercon 111 was not invented
>yet so of course it will state to use merc 11.

Thanks for your response, but those early books (see original post above) do not state to use merc II. They say to use DEXRON II. You may be mixing up dexron with mercon. Was kind of flabbergasted to see a Lincoln manual advise owners to use dexron II in their marks.

BTW, pretty cool to hear your '93 runs 11s!!



Question for those who might know; How would DEXRON work in our Mark VIIIs of any year?

  

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right on the MARKSun Jun-23-13 10:56 PM
Member since Mar 26th 2006
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#5. "RE: Transmission Fluid Type"
In response to Reply # 4


          

>> If you have an early
>>book printed in 1992 guess what mercon 111 was not
>invented
>>yet so of course it will state to use merc 11.
>
>Thanks for your response, but those early books (see original
>post above) do not state to use merc II. They say to use
>DEXRON II. You may be mixing up dexron with mercon. Was kind
>of flabbergasted to see a Lincoln manual advise owners to use
>dexron II in their marks.
>
>BTW, pretty cool to hear your '93 runs 11s!!
>
>
>
>Question for those who might know; How would DEXRON work in
>our Mark VIIIs of any year?
Dextron is a chevy fluid. Mercon is ford. When they got to those fluids in years, they are very close to make up they state on bottle Dex/Mer fluid. Fluids specs are updated all the time. 4R70W's call for Mercon V.This fluid was mainly made to work with the lockup clutch in the converter. If you want to read more check out this link.
http://www.lifeautomotive.com/pdfs/history_of_atf.pdf

  

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Merkur87Tue Jul-30-13 02:43 PM
Member since Sep 23rd 2009
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#7. "RE: Transmission Fluid Type"
In response to Reply # 5


          

To resurrect this for a moment, I ran across the owners manual for my now wrecked 94 Mark VIII and the specification called for in that manual is for Mercon although it does not state III, IV, or V.

The manual has the copyright year of 1993 but does not have the month or year that it was published on the lower right hand corner of the page as the pic above shows.

The 94 manual also states to use Ford Type F ATF in the power steering fluid resevoir.

Weird.

  

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patch7984Fri Aug-30-13 07:12 PM
Member since Feb 13th 2012
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#8. "RE: Transmission Fluid Type"
In response to Reply # 7


          

If I remember correctly ford made mercon which was their version of dexron 3 and very similar to dexron 2, I think the only difference was that dexron 2 would cause the solder on transmission coolers to rust which is more than likely why my mark doesn't have a transmission cooler on it. So now when you see dex/merc on the selves it is dexron 3 and regular mercon. I dont think there is a 2 or a 4 in mercon and I have no idea what the difference between 3 and 5 is you would have to look at technical specs.

  

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