2015 vs 2014 Ford diffs

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CT8

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The 2015 Ford 150 rear diff takes 75w-140 and the 2015 takes 75W-85. Super oil or EPA MPGs?
 
It does? In the online version of the 2015 F150 OM all three engines (2.7L, 3.5L, and 5.0L) all recommend 75W-140 for the rear axle. The front axle uses 85W-90. My 2010 takes the same for both axles.
 
Good catch I looked in the online manual and it is 75w-140 Amsoils look up is wrong.
 
Originally Posted By: CT8
Good catch I looked in the online manual and it is 75w-140 Amsoils look up is wrong.
Amsoil is the gear oil to use though! I have 75W-110 in my front axle and 75W-140 in the rear. I recently changed the oil in my rear axle and the UOA indicates I could have gone to 100K without changing it.
 
I have been watching your U.O.A.s fir quite a while on the Ford.
 
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