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Old 02-07-2019, 05:40 PM   #1
dasauto88
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Default Best Diff Oil for racing 328ti w/ Factory LSD?

Hello All,

I will be tracking my 95 318ti (328ti) with M52B28 swap soon. It has a factory lsd (option). What do you guys recommend for diff oil for RACING application?

I was looking at 75w90 or 75w110 Redline.


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Old 02-07-2019, 06:10 PM   #2
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Default

Definitely the thicker oil. You might even consider 75w-140.

Have you rebuilt the diff with new clutches? I'm not sure how the small case will hold up to the M52 on track. When I rebuilt my medium case diff the clutches were toast and that came from a E30 325i. Last I checked thayermotorsports has the small case clutches and can recommend fluids.
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