Author Topic: Diff Fluid  (Read 3408 times)

FL318is

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Diff Fluid
« on: November 21, 2006, 05:09:32 PM »
Any brand of diff fluid better than the next?

romkasponka

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Diff Fluid
« Reply #1 on: November 21, 2006, 06:16:36 PM »
if you have LSD, you must use for limited slip dif dedicated oil.
« Last Edit: November 21, 2006, 06:19:33 PM by romkasponka »
E30 318is M42
E36 318is M44

Zoso

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Diff Fluid
« Reply #2 on: November 21, 2006, 09:15:51 PM »
Quote from: FL318is;14236
Any brand of diff fluid better than the next?


I've used Mobil 1, Redline, and Castrol synthetic fluids in my LSDs over the years and they've all been fine.  

I say just get a quality name synthetic and call it a day.

FL318is

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Lsd
« Reply #3 on: November 22, 2006, 11:31:27 AM »
I do not have one.  Thinking Redline.  Any particular weight/vis?

Zoso

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Diff Fluid
« Reply #4 on: November 22, 2006, 12:06:37 PM »
Redline 75W-90 is a good choice.

FL318is

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Thanks.
« Reply #5 on: November 22, 2006, 12:08:09 PM »
I will pick it up on the way home.

biljak

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Diff Fluid
« Reply #6 on: November 22, 2006, 08:52:05 PM »
i have made a mistake while ordering oil, and i put Castrol SAF-XO (for final drive without limited slip differential) instead of a SAF-XJ (for and without LSDs). They are both full synthetic 75W90. Do you think I should change the oil, or it can stay? It's not really cheap, so...

AL GReeNeRy

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Diff Fluid
« Reply #7 on: November 25, 2006, 09:38:56 PM »
hw do you replace the diff fluid? i see the bottom most bolt, but i dont want to drain it unless i know where to fill it up from... and how much can the diff hold? got a stock, small case 4.10 non-lsd
1991 318is : brilliantrot

FL318is

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Been there...
« Reply #8 on: November 25, 2006, 10:34:13 PM »
...the top most bolt is the fill.  I bought 3 containers (?quarts?) not sure but rec you wait for the Tech heads to reply.