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Anybody replacing diff and transfer case oil at less than 100k? Anybody replacing diff and transfer case oil at less than 100k?
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  #1  
Old 05-26-2009, 10:17 PM
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I changed both differentials and transmission fluid at 100k on my 01. Compared to the new oil, the old differential fluid was much darker than the new. New transmissions and differentials are not cheap. I spent about 3 hours and $200 doing it myself. It's worth the peace of mind. The dealer will make more money on you replacing your fried components than changing your oil.
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  #2  
Old 05-27-2009, 10:46 PM
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Yes.

I changed at 68k.
Royal Purple 75w90 in the diffs.
I can't recall what I put in the xfer case.

The thing about diffs and xfer cases though is unless you heat them up or contaminate them with water, you could very well be ok. I changed mine because I bought the car used and had little history - and well, I don't trust anyone.
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Old 05-27-2009, 11:35 PM
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Lifetime fluids
Unless BMW has some magic diffs / trannies, I don't believe the lifetime fluid story. All metal gears / moving parts grind a bit, release metal shavings contaminating the oils / fluids.

How quickly it 'goes bad' I think is up to driving conditions, style and dumb luck. One of my favorite indy mechanics told me to change the fluids every 60-80k miles depending on how anal I was and my budget.
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Old 05-29-2009, 11:17 AM
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Hey dipstick, would that Asheville Indie be German Motor Werks by any chance?
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Old 05-29-2009, 11:28 AM
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you betcha! I think you have to trust that dude. Anybody who works on racing porches, mercedes and bmw for as long as him knows what he is doing. And I would eat my next meal off his shop's floor it is so clean.
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Old 05-29-2009, 12:13 PM
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Quote:
Originally Posted by dipstick View Post
you betcha! I think you have to trust that dude. Anybody who works on racing porches, mercedes and bmw for as long as him knows what he is doing. And I would eat my next meal off his shop's floor it is so clean.
...Excellent Indie. Scott, Liz and the gang are A+, imo!
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Old 06-03-2009, 02:10 PM
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I'm following you buahahaha
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Old 11-07-2010, 02:04 PM
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I didnt catch it but how much oil is added to the Transfer Case?
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Old 11-08-2010, 11:42 AM
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Transfer Case Qty
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Originally Posted by ArtMan View Post
I didnt catch it but how much oil is added to the Transfer Case?
My Bentley manual shows transfer case ('00-'03) refill qty is .47 liters (.5 qt.). Changed mine last year with LubroMoly ATF III and recall this quantity being right.
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Old 11-08-2010, 02:32 PM
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Great Thank You appreciate it. I bought 2 quarts just in case. Well time to return. thanks

DSAviate have you used the TIS for BMW vs bently manual? does the manual have better detail?
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