Transfer case oil

Reply Subscribe

Thread Tools

Search this Thread

Oct 29, 2015 | 10:37 AM

sxrfun

Thread Starter

Elder User

Joined: Mar 2011

Posts: 661

Likes: 8

From: Ontario , Canada

Transfer case oil

Hey all...need some input....I'm wanting to change the oil in my transfer case before winter....So Ford has special Transfer case fluid as we all know....Does everyone use this? Or has anyone used say Amsoil or Mobil 1 trans fluid in the t-case. I'm thinking of using the Mobil 1 synthetic trans fluid maybe. Thoughts?

Oct 29, 2015 | 12:18 PM

airm4n

Senior User

Joined: Jan 2015

Posts: 397

Likes: 7

Probably doesn't matter really but i'd use the motorcraft transfer fluid I don't think synthetic is really gonna make much if any difference in a transfer case it either works or it doesn't. Just my 2 cents.

Oct 29, 2015 | 01:27 PM

speakerfritz

Hotshot

Joined: Jul 2013

Posts: 14,254

Likes: 2,180

did some googling since I am about to change mine again. No clear answer except that ford recomendations seem to be linked to current license agreements...meaning...the answer is different for the same vehicle depending what year you ask.

best bet is to buy the ford transfer case fluid...you can get it on line if now where else.

Oct 29, 2015 | 01:55 PM

sammy77

Postmaster

Joined: Oct 2007

Posts: 4,202

Likes: 1

From: Illinois

I have always used Mercon V in all of my transfer cases.

Oct 30, 2015 | 08:29 AM

3speed

Senior User

Joined: Jan 2004

Posts: 107

Likes: 5

Alot of GM guys use synthetic 5W-30 oil in T-cases. Some T-case rebuilders recommend this too. Not sure how a Ford T-case would like it. Maybe even a 0W-20 synthetic. From the years worth of reading I've done it seems the motor oil does a better job than ATF in T-cases. But don't do this without doing alot of research.

I bet the special Transfer Case fluid is plain old Dex/Merc ATF. They probably call it that since the transmissions now require LV or SP or whatever.

Oct 30, 2015 | 08:52 AM

Squisher

Laughing Gas

Joined: Jun 2013

Posts: 1,026

Likes: 23

Quote:

Originally Posted by sammy77

I have always used Mercon V in all of my transfer cases.

So have I although I haven't swapped my '11 yet.

Oct 30, 2015 | 09:00 AM

wrvond

Cargo Master

Joined: Oct 2015

Posts: 2,745

Likes: 72

From: West Virginia

Quote:

Originally Posted by sxrfun

I use whatever the owner's manual calls for. I really see no benefit to deviating from this. The Fomoco fluids are no more difficult to obtain than any other brand.