royal purple in diff and tranny? - BMW Forum - BimmerWerkz.com
3-Series (E21, E30) Chat relating to the BMW 3-Series from 1975-1983 and 1984-1991 line. Specific models: BMW 315, BMW 316, BMW 318, BMW 318i, BMW 320/4, BMW 320i, BMW 320/6, BMW 323i, BMW 320i. E30 Family models include: BMW 325e, BMW 325i, BMW 325is, BMW 325ix.

 
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#1 (permalink) Old 06-26-2011, 06:42 PM
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Question royal purple in diff and tranny?

Thinking about changing the tranny and diff fluid in my 88 325 / i. I was just wondering what everyone thought about royal purple, I belive the weght I need for the diff is 75w90 not sure about the tranny tho. Has any one had any good or bad experences with it?
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#2 (permalink) Old 06-27-2011, 07:22 AM
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brettski is just really nice brettski is just really nice brettski is just really nice brettski is just really nice brettski is just really nice
They make some interesting claims which seems to be backed up by supposedly independant groups. That said, I spoke with Diffs Online about using the Diff oil and he said that a number of people had complained about diff noise with the Royal Purple product, the noise had disappeared when changed to more traditional options.
As far as the customer service goes, I rang the Royal Purple in the US from Australia and they were very helpful and forth coming with advice, so give it a whirl, but be prepared to accept that you may need to change the oils again if they aren't performing to your satisfaction.
Let us know how you go.


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#3 (permalink) Old 06-27-2011, 11:10 PM
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ok ill prob give it a shot i got a $100 gift card to advanced auto so its pretty much a free test run.
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#4 (permalink) Old 07-03-2011, 03:39 PM
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well got the diff fluid just waiting on the gasket from pelican, and ow my ass hurts $18.99 a quart oww.
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