Differential Fluid change

wheels082

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First Name
Paul
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Oct 21, 2018
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Michigan
Vehicle(s)
2018 JLU, 2010 JKU, 1994 XJ
Thank you. Based on the below from their website do I NOT need to add an additional FM?
“This state-of-the-art AMSOIL formulation features an exclusive blend of high-viscosity, shear-stable synthetic base oils and an extra treatment of high-performance additives.”
No, I did not add any additional FM. I have done all 3 of my Jeeps now.
 

word302

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Sep 13, 2017
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Oregon
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JLU
I also used Amsoil in my differentials when I changed the diff fluid in my JLU. When I had a Truetrac installed in my JKU I asked Eaton if they had any oil recommendations. They told me I could use anything I wanted except Valvoline or NAPA.
Well that's just plain dumb. Valvoline makes great oil including the Napa oil.
 
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