Transfer case fluid type?
FTE Leadership Emeritus
Joined: May 2014
Posts: 27,345
Likes: 5,941
From: Lake Hartwell, GA
I used XL-12 a few years back. Not sure what I would put in now after all of the changes from Ford and based on what Mr. Y2KW57 has posted in the past.
This is simply one example...
Quote source: https://www.ford-trucks.com/forums/1...l#post21585518
This is simply one example...
Quote source: https://www.ford-trucks.com/forums/1...l#post21585518
Originally Posted by Y2KW57
After Mobil changed the spec for their Synthetic ATF from Mercon to Mercon V, I stopped using it in the transfer case, since Ford's updated guidance from Motorcraft Service strongly recommended not to use Mercon V in the transfer case, but to instead use Transfer Case Fluid XL-12.
Some years later, Ford ceased offering Transfer Case Fluid XL-12, recommending Mercon LV in the transfer case instead. Unfortunately, Ford's recommendations are inconsistent and conflicted, since elsewhere within Motorcraft Servicen Ford stated not to use Mercon LV in the transfer case.
Ford does not adequately identify or distinguish between different transfer case designs when describing "transfer case."
Some years later, Ford ceased offering Transfer Case Fluid XL-12, recommending Mercon LV in the transfer case instead. Unfortunately, Ford's recommendations are inconsistent and conflicted, since elsewhere within Motorcraft Servicen Ford stated not to use Mercon LV in the transfer case.
Ford does not adequately identify or distinguish between different transfer case designs when describing "transfer case."
Thread Starter
|
Hotshot
Joined: Dec 2012
Posts: 11,266
Likes: 1,649
From: Las Cruces New Mexico
Sounds good thanks fellas.
I had replaced the transfer case fluid when I acquired the truck, but don't remember what I used, this confirms that I must of used Mercon V at the time, so I'm switching it today to Mercon LV, has about 40k'ish miles on the fluid so might as well change it.
I had replaced the transfer case fluid when I acquired the truck, but don't remember what I used, this confirms that I must of used Mercon V at the time, so I'm switching it today to Mercon LV, has about 40k'ish miles on the fluid so might as well change it.
Mountain Pass
Joined: Mar 2021
Posts: 149
Likes: 77
I have been using Mobil 1 ATF for many years and several hundred thousand miles.
No issues
2001 Ex PSD 4x4
PS Truck is a pavement queen with no serious off-roading and very little towing.
No issues
2001 Ex PSD 4x4
PS Truck is a pavement queen with no serious off-roading and very little towing.
Trending Topics
Mountain Pass
Joined: Jul 2004
Posts: 245
Likes: 41
FTE Stories
Ford Trucks for Ford Truck Enthusiasts
AEV FXL Super Duty - the Super Duty Raptor Ford Doesn't Make
Brett Foote
Lobo Vs Lobo: Proof the F-150 Lobo Should Be Even Lower!
Michael S. Palmer
Ford's 2001 Explorer Sportsman Concept Looks For a New Home
Verdad Gallardo
10 Best Ford Truck Engines We Miss the Most!
Joe Kucinski
2026 Shelby F-150 Off-Road: Better Than a Raptor R?
Brett Foote
2027 Super Duty Carhartt Package First Look: 12 Things You NEED to Know!
Michael S. Palmer
10 Most Surprising 2026 Ford Truck Features!
Joe Kucinski
Top 10 Ford Trucks Coming to Mecum Indy 2026
Brett Foote
5 Best / 5 Worst Ford Truck Wheels of All Time
Joe Kucinski
Thread
Thread Starter
Forum
Replies
Last Post
perryphilip
Clutch, Transmission, Differential, Axle & Transfer Case
2
Mar 2, 2002 06:42 PM