no local autofactors can tell me the correct grade for my diff. (e30 325 1990 auto) can anyone help?
cars is on the ramp and oil is draining!
diff oil what grade?
Moderator: martauto
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chu346
- E30 Zone Addict

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Well according to the haynes manual, you need BMW hypoid gear oil, viscosity SAE90. Which may only be avalible for BMW. I'd probably just use some gear oil which is SAE90
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onslow
- E30 Zone Newbie

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ta very much ill go check it out.
any idea on how many liters ill need?
any idea on how many liters ill need?
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onslow
- E30 Zone Newbie

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my haynes manual is on the way but i just want to get this done asap!
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chu346
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0.9 litres
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Brianmoooore
- E30 Zone Team Member

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0.9 litres for most E30s, but 325 is mediun case diff. Needs 1.7 litres.
Oil is SAE 90 hypoid.
Oil is SAE 90 hypoid.
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chu346
- E30 Zone Addict

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Damn haynes manualBrianmoooore wrote:0.9 litres for most E30s, but 325 is mediun case diff. Needs 1.7 litres.
Oil is SAE 90 hypoid.
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onslow
- E30 Zone Newbie

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thanks guys all went well and im running silently now (bar the tappets!) 
