Besides $30 per quart, what's the difference between these?

 

nothing, just a bottle change

 

$30? As Mike Tyson said, "it's ludicrous!"Motorcraft fluids are overrated and overpriced. ACDelco fluid is often the exact same stuff for less $.

Here's a better option for half the price.

Valvoline 75W-140 FlexFill Full Synthetic Gear Oil 1 QT Pouch
$15.48
Amazon.com
Store rating 4.5/5

 

I dont mind overpriced Ford fluid, provided that i dont have issues with items im servicing with said fluid.
In the event that i do, ill look else where.

 

call me crazy but there’s no way in hell AC Delco fluid is going in my Ford

The Valvoline 75W90 is good stuff though

 

Have some questions about this, if you don't mind my jumping in. First, I've seen one spec that says to use 75W-85 fluid, and now I see 75W-140 is recommended. Which is right? My truck is a 2017 (believe open diff). Second, if any have any of you done this change, how many quarts did you end up using? Thanks!

 

They are all the same really.

 

Unless you have limited slip diff. which usually requires an extra bottle of additive (based on manufacture) as long as you put same weight and type xx W xxx its all the same. Changing and inspecting is MOST important.
D.
(former drag racer now family bus driver)

 

The one Ford recommends in your owners manual. As long as the fluid meets the spec, brand makes no difference.
https://www.ford.com/support/owner-manuals/