EDIT:
See "SteveS" post here:
https://www.fiestastforum.com/threads/stressed-need-insight.22830/post-388533
/EDIT
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There could be a bit of a "capacity controversy" going on.
The factory put in 1.6, but it may actually take >2L?
This may explain why the fluid seemed so worn out, and the clacking noise as the transaxle is loaded?? (could be differential or
axle shafts - yet to confirm)
Search "(B6)" in the 2016 owner's manual.
https://owner.ford.com/tools/account/how-tos/owner-manuals/sitemap.html
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On page 241 it lists:
On page 242 it lists:
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On page 238 it lists:
On page 239 it lists:
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The first serial is the specification. The second serial is the Ford part number for the Motorcraft fluid.
Re spec, reportedly,
- WSD = 75W-90
- WSS = 75W-80
The WSD spec that was mentioned is for the 5-speed manual that accompanies the 1.0L EcoBoost, the "IB5" transmission. Note that the description for the IB5 says "Manual
Transmission Fluid". The description for the B6 says "Dual Clutch
Transmission Fluid" instead of manual. Personally, I decided on 3L of Castrol's 75W-90 SynTrans TransAxle fluid.
Anyway, sidetrack aside, I checked the 2016
Service Manual and it matches the
Owner's Manual on the spec and part numbers, for both the "B5/IB5" and "B6" transmissions. So this is good.
Owner and Service Manuals do agree on spec and part serials but they differ slightly on capacities.
Onwer's Manual capacities:
Service Manual Capacities:
Service Manual is more precise with a spec of "1.67L" on the B6, and adds 8.6% more fluid for the B5/IB5 at "2.3L". However, this is not the controversy.
Refill Instructions for
Service Manual:
Put in fluid until it reaches the Fill Hole.
- B6 = "Remove enough fluid to be 1 in (20mm) below the fill hole."
- B5/IB5 = 'It combines instructions as "B5/IB5" and says (via graphic only) "5-10mm" from fill hole.'
As mentioned in the beginning, I got approximately 1.6L of the OEM fluid out. I didn't check the level before draining, but refilling with ~1.6L did not put the fluid anywhere near the manual spec 20mm/1" from the fill hole.
So I'm wondering whether the refill is actually ~2.1L and the factory + ford documentation goofed? Next person that refills, can you corroborate my observations?
Given that vehicle tilt makes a massive difference in fill "capacity" or distance from the fill hole, I did use a ground lever on the garage floor, and also measured the distance of the apex of the wheel well from ground.