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GEN 1 Transfer Case Oil: Mercon LV ATF vs XL12 Transfer Case Fluid

Discussion in 'Ford Raptor Maintenance Forum' started by Gary E, Jan 11, 2019.

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  1. Ruger

    Ruger FRF Addict

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    I don't think we have a definitive answer on this yet.
     
  2. Gary E

    Gary E Full Access Member

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    Changed the transfer case oil today using XL12. Couldn't use a oil bottle pump to put the new fluid in as the XL12 bottles have a larger spout like the Mercon LV. A small funnel and piece of hose was a pain and was messy. Drained 52 ounces (1.75 quarts) out and put in 52 ounces to get it up to the fill hole threads. The manual shows capacity as 1.5 quarts (48 ounces).
     
  3. COBRA90GT

    COBRA90GT Full Access Member

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    Gary E, Ruger and BenBB like this.
  4. Buzzard2

    Buzzard2 FRF Supporting Member Supporting Member

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    Went to one of the local dealers to get the Transfer case oil and they do not sell it anymore sold me Mercon LV. Being the skeptic that I am I called another dealer and got the same answer Mercon LV for the T- Case.
     
  5. Sozzy12

    Sozzy12 Full Access Member

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    I did the same thing a few weeks ago. Got the same answer. MerconLV. Parts guy said Ford phased out the transfer case fluid a few years ago.
     
  6. Ruger

    Ruger FRF Addict

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    Something isn't right here. I bought a quart of the Ford Transfer Case Fluid from a Ford dealership just last year.
     
  7. Sozzy12

    Sozzy12 Full Access Member

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    I wonder if your dealer had a stockpile they are trying to get rid of by pawning it off on you?
     
  8. Gary E

    Gary E Full Access Member

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    I wouldn't call it "pawning it off". It's not a negative. It's what's in the manual. Where it's still available, I'll buy it and use it. When it's gone then it'll be the Mercon.
     
  9. Ruger

    Ruger FRF Addict

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    I wish there was a means to compare the two. I'm curious as to whether Ford discontinued its product because it was inferior or not worth continuing to market. But near as I can tell, Ford has never published the characteristics or formula of it's Transfer Case Fluid. Mystery Liquid!
     

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