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Originally Posted by 325d09
Very interesting read and knowledgeable group! One question tho. Want to replace geaebox oil and diff but mine is a 325d 2009 pre lci manual thus is it same oils as whats on this thread oor different? From what i have read i am lead to believe 75w90 is way to go for both??
Many thanks in advance.
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You can use the same oils as mentioned in this thread.
I think for your car BMW originally spec'd MTF-LT3 oil for the manual gearbox fluid and 75w140 gear oil for the diff.
LT3 has now gone to LT5 specs from BMW. As for the diff you could use a 75w140 oil or a 75w90.
IF you can get ahold of Redline oil in the UK... I would go with either their MTL or MTL90 for the gear box(manual trans, GL4 rated) or even their ATF-D4(I still like this oil in my manual gearbox!). I think Redline also makes a MTF-LT5 compatible gearbox oil too.... but I forget the Redline name for it - at the moment. Maybe contact Redline to see what they recommend now.
For the diff... you can use a 75w90 or a 75w140 GL5 rated oil. I use the latter - since I drive a lot on the Autobahn at very high speeds(>285 kph)
Dackel