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  #1  
Old 11-07-2008, 07:14 AM
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Replacing the Transfer case fluid

2008 F250 V10

My manual states "Ford Transfer Case Fluid" is the fluid to use...what a shock. Anyone know what a Mobil Synthetic equivelent would be for my 08 SD?

Thanks
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  #2  
Old 11-07-2008, 09:10 AM
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Quote:
Originally Posted by flyingtexan View Post
2008 F250 V10

My manual states "Ford Transfer Case Fluid" is the fluid to use...what a shock. Anyone know what a Mobil Synthetic equivelent would be for my 08 SD?

Thanks
The transfer case in my '03 uses a little over 1/2 gallon of ATF so I don't know what is referred to as transfer case fluid, but here's a bump for ya.
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  #3  
Old 11-07-2008, 09:26 AM
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i put mobile 1 atf syn. in mine, works great!
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Old 11-07-2008, 09:56 AM
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Quote:
Originally Posted by 03_PSD View Post
i put mobile 1 atf syn. in mine, works great!

used the same, no issues
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  #5  
Old 11-07-2008, 12:13 PM
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I called my buddy at Ford parts dealership......Mercon 5 for the 08's transfer cases, holds about 3.5 qts better get 4 qts.
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  #6  
Old 11-07-2008, 12:37 PM
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Mercon 5 is an ATF so any ATF that is Mercon compatible/comparable is good. I replaced mine with Royal Purple since I had plenty on hand.
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Old 11-07-2008, 01:15 PM
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All i can say is....before you drain the darn thing, have the right size Allen wrench to remove the fill plug.
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Old 11-07-2008, 02:56 PM
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Quote:
Originally Posted by ReAX View Post
Mercon 5 is an ATF so any ATF that is Mercon compatible/comparable is good. I replaced mine with Royal Purple since I had plenty on hand.
Originally Ford said that you could not use Mercon V in Mercon recommended systems. Since Mercon is no longer being produced, only Mercon V rated ATF, Ford has since issued a bulletin stating the Mercon V is compatible to Mercon and can be used instead of Mercon.
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Old 11-07-2008, 04:17 PM
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Right, now mercon is mercon and mercon V.
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Old 11-07-2008, 04:59 PM
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Quote:
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Right, now mercon is mercon and mercon V.
Yes.... but Mercon V is not used in the new automatic transmissions! that would be Mercon SP. Looks like Ford has 5 differiant auto transmission fluids now.
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Old 11-07-2008, 05:09 PM
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Quote:
Originally Posted by WestxSRT10 View Post
Yes.... but Mercon V is not used in the new automatic transmissions! that would be Mercon SP. Looks like Ford has 5 differiant auto transmission fluids now.
I never understood that myself. M1, Amsoil and others can make a universal synthetic ATF but were still screwing around with different grades.
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Old 11-07-2008, 05:28 PM
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Quote:
Originally Posted by flyingtexan View Post
2008 F250 V10

My manual states "Ford Transfer Case Fluid" is the fluid to use...what a shock. Anyone know what a Mobil Synthetic equivelent would be for my 08 SD?

Thanks
Just a friendly TIP: Make sure to drive around and get the transfer case to normal operating temp. That is the best way to change it out...just because it flows better.

Agree with the other posts...any Mercon V will do. I like OEM FORD...but that is just my preference...


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  #13  
Old 12-15-2011, 08:24 AM
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Quote:
Originally Posted by WestxSRT10 View Post
I called my buddy at Ford parts dealership......Mercon 5 for the 08's transfer cases, holds about 3.5 qts better get 4 qts.
A notation on the back of the Motorcraft Mercon V bottles says "Do not use in transfer cases". My 03 manual says to use Mercon ATF which is not longer made.
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Old 12-15-2011, 09:44 AM
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In 2008, Ford changed to "Ford Transfer Case Fluid." I've never found a good explanation of why or what the difference is or if there is even a difference in the transfer case from earlier models.

Frankly, though, for the cost of 3 quarts of fluid from Ford, vs the cost of a transfer case, I'd get the stuff from Ford.
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Old 12-15-2011, 11:17 AM
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I would not use Motorcraft Mercon V in my transfer case, because the bottle specifically says not to. Does anyone think they were joking?

When Ford obsoleted the Mercon, and interchanged Mercon V, evidently they had a problem because Mercon V was not suitable for transfer cases. That is when they released a product specifically called Transfer Case Fluid. I don't believe they came up with a new product SKU just for the heck of it. There had to be a good reason why their Mercon V was not to be used in TC.

I would skip the Motorcraft product altogether. I used Mobil 1 synthetic ATF in my TC and it has been perfect for a long time. Buy 3 quarts. You might need only 2, but many take a bit more. Return the 3rd one if you don't need it. Or save it for the day when you flush your power steering system. It works great for that too.
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Old 12-15-2011, 11:17 AM
 
 
 
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