Mercon v with 1995 E4OD
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Mercon v with 1995 E4OD
I am doing a fluid exchange Friday for my 1995 F350 with E4OD. I wanted synthetic fluid, and the guy said he would suggest Mercon V, I told him I had heard some bad things about that fluid in these transmissions, but I also heard that the newest Mercon V is now compatible with E4OD's....do you guys think it will be fine? He says he has never had a problem with adding Mercon V to E4OD's
Frmr Ford Trans Engr
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From: SE Florida
I'm looking, but I can't quite make out the label on their fluid to know how long ago they bought it.
I think all MERCON V made since 2006 is the new fluid. How long have they had that fluid on the shelf? More or less than two years?
I think all MERCON V made since 2006 is the new fluid. How long have they had that fluid on the shelf? More or less than two years?
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Would they be to blame for any reason it caused damage? I am also having this install a bigger transmision pan (4qt extra, and finned), and installing a transgo shift kit, I am just looking to protect my transmission as best as possible. I also wanted to change the transfer case fluid, do you think I could have them put the Mercon V in that as well? Thank u for ur help, u seem very knowledgeable to this subject
Frmr Ford Trans Engr
Joined: Aug 1999
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From: SE Florida
I don't know who the "they" are you want to blame for something.
What do you expect from the pan? Other than the added cost of the pan and the cost of more fluid I don't see any difference. A bigger trans cooler would be MUCH better for the trans than a bigger pan.
You can't get MERCON anymore. MERCON V replaced MERCON for ALL applications.
What do you expect from the pan? Other than the added cost of the pan and the cost of more fluid I don't see any difference. A bigger trans cooler would be MUCH better for the trans than a bigger pan.
You can't get MERCON anymore. MERCON V replaced MERCON for ALL applications.
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More fluid means more fluid to disperse heat. The bigger pan gives more surface area to dissipate heat off the pan. More cooled fluid means more fluid to cool transmission, it also means more fluid helps carry contaminates into the filter. I think of it like this, if you got a pot of water boiling on the stove, its going to take longer to boil a full pot of water then it would take to boil a half pot of water. Hence, more transmission fluid means more volume of fluid that would need to be heated to cause overheating. Not that the stock amount of fluid is a problem, but anytime you can add more fluid its not going to hurt it either. I have a big transmission cooler currently as well.
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Elder User
Joined: Sep 2007
Posts: 521
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From: new mexico
wow
i have been around and around with this for 3 yrs...
so
the "new"mercon V is different than the mercon V from 2005..??
i neve had any problems until i bought mercon v in 2005..
now i have a shudder...
i have been around and around with this for 3 yrs...
so
the "new"mercon V is different than the mercon V from 2005..??
i neve had any problems until i bought mercon v in 2005..
now i have a shudder...
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Frmr Ford Trans Engr
Joined: Aug 1999
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From: SE Florida
But with no means to circulate that additional fluid most of it just sits unmoving in the pan. That doesn't help anything.
Two problems with this. First, much of the fluid is sitting stagnant in the bottom of that big pan. That means it isn't circulating to collect heat from the trans. Also, it can't transfer that heat to the pan since it isn't moving. Second, the air around the pan is HOT. You can't transfer heat from a hot pan to hot air. Heat just won't do that.
No, it doesn't work like that. No matter how much fluid the trans holds it still circulates the same amount. You haven't changed the pump's capacity, so even with the bigger pan you have EXACTLY the same amount of fluid to carry contaminants to the filter.
I also think that once you do heat up more fluid it will take longer to cool the extra fluid, so what have you really gained?
It's not going to hurt it, but I question whether it helps anything. I don't see spending the money for little if any improvement. The big trans cooler is a MUCH better buy than a bigger pan.
It's not going to hurt it, but I question whether it helps anything. I don't see spending the money for little if any improvement. The big trans cooler is a MUCH better buy than a bigger pan.
Frmr Ford Trans Engr
Joined: Aug 1999
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From: SE Florida
Yes it is. It has been reformulated to be compatible with all transmissions that used to require MERCON. The change happened in 2006.
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Howcome he has a "shudder" now? Just a coincidence?
Thank you Mark btw
Frmr Ford Trans Engr
Joined: Aug 1999
Posts: 24,712
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From: SE Florida
Two possibilities: One, the trans is having a bad reaction to the old version of MERCON V. Second, the fluid that's been in the trans since 2005 is worn out and needs to be replaced.
Elder User
Joined: Sep 2007
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From: new mexico
well
in my case i was told in 2005 that mercon v would work with the old mercon by parts people...
so
i am sure it was mixed...
in 2007 it was all taken out and then the MD put in..
started noticing the shudder less than 4000 miles later...
so
should i try the "new" mercon V to see if shudder goes away. it is very very slight at hi gears.
in my case i was told in 2005 that mercon v would work with the old mercon by parts people...
so
i am sure it was mixed...
in 2007 it was all taken out and then the MD put in..
started noticing the shudder less than 4000 miles later...
so
should i try the "new" mercon V to see if shudder goes away. it is very very slight at hi gears.