Differential oil change

Grave

Newbie
Joined
Nov 18, 2024
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3
Good evening fellas.
It's been around 9 days that I m reading non stop information, and honestly, the more I read the more confused I become. I got two weeks ago my Z3 1.9 1997 with 98.000km. From mdecoder and bimmer with my VIN, I saw in both websites that I have the option S209(if these sites are trustworthy). From my understanding all z3 1.9 until 1999 came with an open differential, but if you have the option S209 its a Torsen.

From my research I found out that I need 75W90. My question is, is required the oil to be 'with limited slip'? Most of the oil don't even mention it, some do.

I am planning to change the gear and differential oil on Saturday, if I get the correct info and order the oil on time. For the gears I chose D4 ATF.

Thank you for your time reading this, cheers
 

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