No, I did not add any additional FM. I have done all 3 of my Jeeps now.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.”
Well that's just plain dumb. Valvoline makes great oil including the Napa oil.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.