Mercon Transmission Fluid
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From: Long Island USA
That's why my tranny dipstick says "Mercon only".
Mercon V has been used in the 4R70W's to help the TC lockup shudder - it sure helped both my '96 t-bird 4.6L and the wife's '97 4.6L w/4R70W's...
But I would never use it in the 4R100 (E40D)... based on what I've heard from the "grapevine" and here on this site.
Mercon V has been used in the 4R70W's to help the TC lockup shudder - it sure helped both my '96 t-bird 4.6L and the wife's '97 4.6L w/4R70W's...
But I would never use it in the 4R100 (E40D)... based on what I've heard from the "grapevine" and here on this site.
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Originally Posted by v10kenj
I had the dealer put the mercon (now called mercon 3) back into my transmission today. The part number on the mecon 3 quart was the same one listed on the PDF for regular mercon. It might be my imagination, but the shifts feel a little better (firmer) now than when I was running on mercon 5.
Also is it MERCON III or DEXRON III? Someone earlier said there was no product 'MERCON III' but a few people have told me MERCON and MERCON III is the same.
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From: colorado
Originally Posted by Richard4447
Is the MERCON III bottle you have a Ford labeled bottle with the part # XT-2-QDX or an over-the-counter product like Pennzoil?
Also is it MERCON III or DEXRON III? Someone earlier said there was no product 'MERCON III' but a few people have told me MERCON and MERCON III is the same.
Also is it MERCON III or DEXRON III? Someone earlier said there was no product 'MERCON III' but a few people have told me MERCON and MERCON III is the same.
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From: Austin, TX
I had the ford dealership flush out the mercon v and replace it with the correct fluid. They told me that they don't drop the pan when doing the flush, so I'm concerned that they also didn't change the filter. Is this necessary, especially when the wrong fluid was put in. I want to make sure they got all of it out.
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From: Austin, TX
Originally Posted by Richard4447
Is the MERCON III bottle you have a Ford labeled bottle with the part # XT-2-QDX or an over-the-counter product like Pennzoil?
Also is it MERCON III or DEXRON III? Someone earlier said there was no product 'MERCON III' but a few people have told me MERCON and MERCON III is the same.
Also is it MERCON III or DEXRON III? Someone earlier said there was no product 'MERCON III' but a few people have told me MERCON and MERCON III is the same.
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Joined: Jul 2002
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From: Long Island USA
Originally Posted by v10kenj
I had the ford dealership flush out the mercon v and replace it with the correct fluid. They told me that they don't drop the pan when doing the flush, so I'm concerned that they also didn't change the filter. Is this necessary, especially when the wrong fluid was put in. I want to make sure they got all of it out.
I'm glad you had the extra work done...
Historically speaking, Mercon V came out with a bit of limited-slip additive in it to stop the "chatter" of the clutches in the 4R70W trannies and other car-oriented trannies.
The E40D/4R100 is a completely different animal that never showed the TC lockup shudder or other shifting concerns that the passenger-car trannies did.
So, no reason to use Mercon V in it, and even more-so, no reason for the anti-chatter additive. Even if it didn't destroy the tranny, it's still not required WHATSOEVER. Better safe than sorry.
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From: Austin, TX
Originally Posted by FortyFords
What did they do for you as far as in writing situation ????
Rich
Rich
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There is no such thing as MERCON 3 or MERCON III. It's just MERCON.
DEXRON III/MERCON is fine. That's what the Ford info says. You don't want to use a fluid that has MERCON V or MERCON SP listed. Those are dual usage, not the DEXRON III/MERCON.
DEXRON III/MERCON is fine. That's what the Ford info says. You don't want to use a fluid that has MERCON V or MERCON SP listed. Those are dual usage, not the DEXRON III/MERCON.
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Originally Posted by Casey
There is no such thing as MERCON 3 or MERCON III. It's just MERCON.
DEXRON III/MERCON is fine. That's what the Ford info says. You don't want to use a fluid that has MERCON V or MERCON SP listed. Those are dual usage, not the DEXRON III/MERCON.
DEXRON III/MERCON is fine. That's what the Ford info says. You don't want to use a fluid that has MERCON V or MERCON SP listed. Those are dual usage, not the DEXRON III/MERCON.
How to change ATF in the 4R100 and E4OD
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From: Austin, TX
The Ford service manager called me today and finally admitted that mercon v should not be used in the 4R100 transmission.
Even though they reflushed the transmission and put the mercon back in, they agreed to extend the powertrain warranty from 3yr/36,000mi to 5yr/75,000 mi to cover any possible damage that could occur.
Thank you everyone for you help on this.
Ken
Even though they reflushed the transmission and put the mercon back in, they agreed to extend the powertrain warranty from 3yr/36,000mi to 5yr/75,000 mi to cover any possible damage that could occur.
Thank you everyone for you help on this.
Ken
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to me this is something i would not "experiment" with. if they wanted the trans to use V then they would have specified V, the dealership that i work at happens to be a redline oil distributor, and they do offer a mercon synthetic but i did not use this in my trans because i do not feel it is worth risking damage.
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From: All Over
Originally Posted by v10kenj
The Ford service manager called me today and finally admitted that mercon v should not be used in the 4R100 transmission.
Even though they reflushed the transmission and put the mercon back in, they agreed to extend the powertrain warranty from 3yr/36,000mi to 5yr/75,000 mi to cover any possible damage that could occur.
Thank you everyone for you help on this.
Ken
Even though they reflushed the transmission and put the mercon back in, they agreed to extend the powertrain warranty from 3yr/36,000mi to 5yr/75,000 mi to cover any possible damage that could occur.
Thank you everyone for you help on this.
Ken