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Discussion Starter · #1 ·
Hi all,
I want to change the oil in the diff any idea what type i use and how much i need my BM is 91 525i M50, its got a slight leak so im not sure how much is in there

many thanks:thumbup:
 

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Discussion Starter · #3 ·
oil

Hi Info,
not sure about LSD,how would you now i have noticed that when i try to wheel spine it doesnt really happen,you get a slight spine for a split second but nothing much but the acceleration is very good so im thinking it has LSD is that a good guide as for the leak im not really sure if i can fix
many thanks
laney
 

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LSD starts with S on the diff tag.

I have an LSD, and am running mobil 1 80 (or 85)-140, as that is the equivalent of the CURRENT BMW suggested fluid.

the used to use 75-90, but just try pricing the BMW stuff... I dont think you can even get the old stuff for less than $20 a bottle

Bentley has the specs but youll need two quart bottles and have some left over.

Make sure you can open the fill plug before you drain it... ok?
 

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Discussion Starter · #6 ·
Hi info
do i need a mighty vac or can it be done by hand failing that i might be better off taking it to a mehcanic
many thanks :dunno:
 

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And be prepared for the smell of spent gear oil. Bleech!
 
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