transfer case and diffs.
Senior User
Joined: Mar 2010
Posts: 167
Likes: 0
It really depends on what you are doing with the truck, I change my more often because I work the truck hard, but I think generally you should try to change them every 50k-75k
front diff is usually 75-90
rear diff is usually 75-140 with limited slip add-in if neccesary
transfer case is usually the same as the transmission so maybe mercon v
front diff is usually 75-90
rear diff is usually 75-140 with limited slip add-in if neccesary
transfer case is usually the same as the transmission so maybe mercon v
Post Fiend
Joined: Mar 2009
Posts: 11,798
Likes: 14
From: Mt. Shasta California
Mercon V........
Senior User
Joined: Mar 2010
Posts: 167
Likes: 0
Mercon V replaced the outdated mercon sp so they are the same thing
ech tips
Approval to Service ALL 5R110 Automatic Transmissions with MERCON® LV
Beginning immediately ALL (2003 to 2010 MY) 5R110 automatic transmissions can be serviced with MERCON® LV automatic transmission fluid in place of MERCON® SP.
Initially only the 2009/10MY 5R110 automatic transmissions were filled and serviced with MERCON® LV. In an effort to reduce complexity, Ford Motor Company is allowing all previous model year 5R110 automatic transmissions to be serviced with MERCON® LV automatic transmission fluid. This pertains to top off as well as fluid replacement. Mixing of MERCON® LV and MERCON® SP in the 5R110 transmission is acceptable. Extensive testing has been performed to insure there are no functional or durability concerns with the use of MERCON® LV in the 5R110 automatic transmission.
Vehicles affected are F-Series Super Duty trucks (including chassis cab, motorhome, LCF).
Motorcraft MERCON® LV is now available in three sizes:
Part Number: XT-10-QLVC - 1 quart
Part Number: XT-10-DLV - 55 gallon drum
Part Number: XT-10-BLV - Bulk
Further information can be found in the Workshop Manual, Section 307-1, Automatic Transmission
Mike
ech tips
Approval to Service ALL 5R110 Automatic Transmissions with MERCON® LV
Beginning immediately ALL (2003 to 2010 MY) 5R110 automatic transmissions can be serviced with MERCON® LV automatic transmission fluid in place of MERCON® SP.
Initially only the 2009/10MY 5R110 automatic transmissions were filled and serviced with MERCON® LV. In an effort to reduce complexity, Ford Motor Company is allowing all previous model year 5R110 automatic transmissions to be serviced with MERCON® LV automatic transmission fluid. This pertains to top off as well as fluid replacement. Mixing of MERCON® LV and MERCON® SP in the 5R110 transmission is acceptable. Extensive testing has been performed to insure there are no functional or durability concerns with the use of MERCON® LV in the 5R110 automatic transmission.
Vehicles affected are F-Series Super Duty trucks (including chassis cab, motorhome, LCF).
Motorcraft MERCON® LV is now available in three sizes:
Part Number: XT-10-QLVC - 1 quart
Part Number: XT-10-DLV - 55 gallon drum
Part Number: XT-10-BLV - Bulk
Further information can be found in the Workshop Manual, Section 307-1, Automatic Transmission
Mike
Trending Topics
Post Fiend
Joined: Mar 2009
Posts: 11,798
Likes: 14
From: Mt. Shasta California
FTE Stories
Ford Trucks for Ford Truck Enthusiasts
Top 10 Fords at 2026 Carlisle Ford Nationals
Joe Kucinski
3 Best / 3 Worst Parts of Modern Ford Ownership
Brett Foote
10 Amazing Upgrades That Solve Common Ford Truck Owner Headaches
Pouria Savadkouei
Every 2026 Ford Engine Explained
Brett Foote
10 Ugly Ford Trucks That We Still Kinda Love
Joe Kucinski
10 Things Every Truck Owner NEEDS (2026 Edition)
Michael S. Palmer
Rezvani's Latest Post-Apocalyptic Monster Is a Ford F-150 Raptor Underneath
Verdad Gallardo
Top 10 Most Expensive Ford Trucks Ever Sold on Bring a Trailer
Joe Kucinski
2027 Ford Super Duty Buyer's Guide (Every Model, Engine, & Package)
Brett Foote
Cargo Master
Joined: Jul 2011
Posts: 2,000
Likes: 4
From: Nowthen, MN
Mercon V did NOT replace SP. Mercon LV replaced SP. Mercon V should not be used in SP/LV applications and vice versa. DO NOT use LV or SP in the transfer case, it's far too thin. The correct fluid to use in the transfer case is Motorcraft XL-12 Transfer Case Fluid, but Mercon V should be ok to use as well.
http://www.fcsdchemicalsandlubricant...ission%20Fluid
http://www.fcsdchemicalsandlubricant...ission%20Fluid
Laughing Gas
Joined: May 2008
Posts: 939
Likes: 1
From: Central Kansas
I agree w/ ExV10, the manual calls for 2qts Mercon ATF for the transfer case...that said I'm not sure using SP would hurt anything if you have a couple extra quarts. BTW, where did you find SP? It's been phased out for a while now, the replacement is LV.
Thread Starter
|
Junior User
Joined: Oct 2012
Posts: 72
Likes: 0
I bought the sp from the dealer, they recomended it, as also it says on the trans dipstick, thats the only place I looked for it since I was buying both filters, never knew it was phased out, the truck was last trans serviced by ford at 50,000 with sp. and since they had it, I got it, thanks for all responses. and I bought just enough for the trans, I will need more when I do the transfer case
Thread
Thread Starter
Forum
Replies
Last Post
pcguy760
1997 - 2006 Expedition & Navigator
7
Nov 20, 2008 10:48 AM
cowmilker08
1987 - 1996 F150 & Larger F-Series Trucks
9
Nov 6, 2008 05:36 PM