WSS-M2C200-D2 vs WSD-M2C200-C

[SchumiGr]

Hello all

I am the owner of a Fiesta ST150, 2007 that has the IB5 gearbox. It is the time to change clutch and I though to replace the transmission oil too. The problem is, that Ford spare parts sellers sell the WSS-M2C200-D2 whereas the manual refers to WSD-M2C200-C. The latter is a 75W90 oil, while the former is a FE75 (whatever that means). Does anyone know what is the difference between the two?

I would like to believe that there is probably a reason why the D2 pops up as a recommendation, but on the other hand the C, seems like a more appropriate transmission fluid. Any infos would be more than welcome, thanks

 

[56Cummins]

Transmax Manual Multivehicle 75W-90 - Castrol - PDS & MSDS https://msdspds.castrol.com/bpglis/...59EFABE802587D1004A8C39/$File/wepp-bzlqgp.pdf



Syntrans FE 75W - Castrol - PDS & MSDS https://msdspds.castrol.com/bpglis/...1884B/$File/syntrans fe 75_467283_2013-12.pdf

Half the viscosity for d2. Its a thin "FE" mileage fluid.

My zf6 calls for C2, older models ran mercV. They went thicker fluid with the higher output.

 

[Jackson_Slugger]

I used Ravenol in my ex-Focus manual, worked well:

RAVENOL MTF-3 SAE 75W is tried and tested for aggregates specifying:
Recommendations: ACDelco 10-4037; BOT 303, BOT 350 M3; Fiat 9.55550-MZ6; FORD WSS-M2C200-D2, WSS-M2C200-D3; ...

https://www.ravenolamerica.com/passenger-car-products/75w-gear-oil-ravenol-mtf-3/

 

[ceecbtg]

D2 is last eco spec, very thin oil.
C is the classic spec, tick oil.
Both are mostly real syn, true GL4 and same additive.
If not good reason for D2, stay with C or compatible 75w85/90 pure GL4.

 

[SchumiGr]

Thank you all for the info! I went for D2 (75W), as I thought that a gearbox with 230K kms (about140K miles) could use a thinner oil to be smoother - not sure if that thought makes sense. I also hesitated to go against Ford's recommendation, I noticed that they recommend D2 in almost every car of that period (2000-2010/12). Let's see how it goes

 

[virsli]

Thank you all for the info! I went for D2 (75W), as I thought that a gearbox with 230K kms (about140K miles) could use a thinner oil to be smoother - not sure if that thought makes sense. I also hesitated to go against Ford's recommendation, I noticed that they recommend D2 in almost every car of that period (2000-2010/12). Let's see how it goes

So how is your transmission doing? I'm thinking about changing original C oil to D2 just like you.

 

[SchumiGr]

So how is your transmission doing? I'm thinking about changing original C oil to D2 just like you.

It is going okay, you feel the "gears" in the gearshift a bit more which tbh, I am not sure it is the best. I prefer the original feeling (prob with 75w-90) and since I will be changing the clutch again, I am thinking to switch back from D2 to C. Did you make the change? And if yes, how is it working out?

PS: sorry for the delay, car was left aside all this time due to work

 

[930.engineering]

.
Grüzi!

Zürich = Switzerland = cold winters. Be careful with too thick transmission oils
please.
I'd suggest to try a 75W-80 GL-4, somewhat the sweet spot between 75W and
75W-90. Sadly there are just very few 75W-85 GL-4 offerings (Redline MT85 and
some Castrol but hard to obtain, only in 20 l containers).

You might find these easier in Switzerland or online from several German vendors:

- Castrol Transmax Manual V 75W-80
- Ravenol MTF-2 75W-80

I ran them both with good results. Transmax Manual V on the GTI and Ravenol MTF-2
on the Cooper which has a Getrag unit like your Fiesta ST. Shifting quality is excellent.

https://bobistheoilguy.com/forums/threads/what-mt-oil-to-use-in-an-mtx75-gearbox.374053/

https://bobistheoilguy.com/forums/threads/wss-m2c200-d-vs-d2-vs-d3.327551/