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Old 05-18-2009, 04:56 PM   #6
3rd Gear Member
MLue1's Avatar
Join Date: May 2008
Location: Markham
Posts: 458
Originally Posted by daveyto View Post
...After a chemical lab analysis of The BMW fluid there was was nothing special in it or any of BMW fluids which apparently are similar to Castrol Syntec products. I chose Royal Purple because I thought it best. I just wanted to not pay the $90 for supposedly "off the shelf" castrol fluids as I was told.

here's royal purple cross reference for the most common auto manufacturers.

BTW...IF you or anyone is interested in the chemical analysis of the BMW fluids...I can dig it up once again
Thanks David, that's great info, I for one have never though BMW fluids were special.

I use the Redline 75W90NS (NS is for non-limited slip applications)product in my open diff mostly because it's readily available. I use the Redline 75W90 in my other car which has a limited slip diff.
'99 E39 540iT
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