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Thread: Royal Purple Trans/Gear oil
04-11-2006 09:33 PM #1
- Minneapolis, MN, United StatesMember No: 34931
- Join Date
- Apr 2002
- Rep Power
Royal Purple Trans/Gear oil
I used Royal Purple Synchromax in my E39 540-6 & was happy with it.
I get conflicting input on their transmission oils for my E34///M5.
One rep states to use Synchromax for transmission & Gearmax 75w90 for differential.Another states Gearmax 75w90 for both.
In Roundel Mike Miller dismisses the product,because the name reminds him of a candy or drink from the old fasioned soda fountain shop.
What is the right RP product for this application.
'91///M5 Blk/Blk Coming out of winter storage.
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