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Differential fluid change - do I need friction modifier?

Discussion in 'Ford Raptor Problems and Questions Forum' started by Madcowranch, Feb 5, 2014.

  1. Aramco Raptor

    Aramco Raptor Full Access Member

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    Apparently not...I'll look for it now...
     
  2. Aramco Raptor

    Aramco Raptor Full Access Member

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    Yukon,

    I just did multiple searches and went through 20 pages of threads...

    Is there a particular thread you are referring to?
     
  3. Yukon Joe

    Yukon Joe FRF Addict

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    Bump for my buddy

    Yukon Joe
     
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  4. Yukon Joe

    Yukon Joe FRF Addict

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  5. Aramco Raptor

    Aramco Raptor Full Access Member

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    Thanks Yukon.

    As for the friction modifier conundrum...from the SVT Supplement...Page 32
     

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  6. Dv8tor

    Dv8tor FRF Addict

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    So I just ordered a case of 75W140 for my diffs. But then I was just glancing at SDHQs website and they have bottles of 75W90 for the front diff. I ordered 2 tubes of that slip lock stuff too. Should I order 75W90 for the front or will the 75W140 work?.
     
  7. Jimbo

    Jimbo Mad Frog Mattis

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    Use 75W90 for the front, per the specifications.
     
  8. Hazzard

    Hazzard Full Access Member

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    I have used both Royal Purple, & Amsoil both have been great.
     
  9. Jimbo

    Jimbo Mad Frog Mattis

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    I'm using Redline... but any of the brands you listed are all good quality.
     
  10. HAYNES OFFROAD

    HAYNES OFFROAD aka Wreckless

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    Redline, Lucas, royal purple, amsoil.... All great lubes, and can't really go wrong with any of them

    Personally I use Amsoil in all my vehicles, bikes, etc... Have been using it exclusively for 15 years. I test all my fluids and brands, and ive always got the best results with amsoil. This includes testing customer fluids when I change any out.

    Ive become on a first name basis with blackstone hahaha
     

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