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Discussion Starter · #1 ·
I need to service the gf's rear diff.
Does it need synthetic fluid?
And where can I get it? My computer says 80w90. I tried to log onto a Ford Escape message forum, but they wont let me on.
 

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It'd have to be AWD to have a rear differential. Escapes are FWD standard.

*Edit*

I looked in the owner's manual of my parent's 2008 Escape and it has a chart of all the fluids and capacities. For 4WD/AWD models there are two things listed: the Power Transfer Unit (AKA transfer case I guess) and the Rear Axle. The Power Transfer Unit calls for "12oz (0.35L)" of "Motorcraft (that is Ford) SAE 75W-140 Synthetic Rear Axle Lubricant" and the Rear Axle calls for "2.4 pints (1.15L)" of "Motorcraft SAE 80W-90 Premium Rear Axle Lubricant."

I knew that 80W-90 sounded familiar when I first saw it. It's the same type of fluid I used in my Thunderbird's rear differential when I changed it. And no, I don't recall it being synthetic.
 

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Discussion Starter · #5 ·
Ahhh...
First off..it is AWD V6.
We have a rather cumbersom system at work, but it listed the rear diff fluid as 80w90. My thing is that Ford likes to put synthetic fluid only in the rear diffs, that 75w140 stuff. I have a lot of that since we tend to do a lot of axle seals on Explorers and Expeditions. I didnt want to put the wrong stuff in there.
Alright then, Ill just get 80w90 Fluid and be done with it. I can do it at work for 20 bucks, and not get rammed by the dealer for well over 100 bucks.
Thanks guys.
 
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