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General E46 Forum
This is the place to get answers, opinions and everything you need related to your E46 (sedan, coupe, convertible and wagon) BMW!

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Old 04-15-2009, 12:40 PM   #1
mrwianno
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Front transfer case lube.

for 2001 325xi, what is oil amount and specification for front transfer case.
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Old 04-15-2009, 12:49 PM   #2
GCoop
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Quote:
Originally Posted by mrwianno View Post
for 2001 325xi, what is oil amount and specification for front transfer case.
Differential or Transfer case???

Since you said front I assume you meant differential.

For the front differential you will want to use a synthetic 75W90 API GL-5 spec Gear oil. Capacity is just under 1 US qt. (.8 if i remember correctly)

ADDITIONAL INFO:

Rear Diff=Synthetic 75W90 API GL-5 spec Gear oil Capacity is just over 1 US QT. (1.125 if i remember correctly)

Transfer Case= 70W80 API GL-4 spec Gear Oil--Synthetic, if you can find it. Redline MTL is a good cantidate.

NOTE: Some people put ATF in their transfer case but it is WAY thinner than the original fill, 70W80 GL-4 gear oil is the closest that I have found to the original fill.

Last edited by GCoop; 04-15-2009 at 02:32 PM.
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Old 04-15-2009, 12:53 PM   #3
jbeurotech
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My Ride: 2000 E46 with 254K
Transfer Case

Fluid Type MTF-LT1 Or MTF-LT2
Part Number 83-22-9-408-942 or 83 22 0 309 031
Lifetime fluid

Approved Final Drive Oils for Front and Rear Axle Final Drives
With and Without Limited Slip or Viscous Coupling

All models are factory filled with a synthetic final drive oil.

Limited Slip Differentials
BMW Synthetic Final Drive Oil (SAF-XJ)
(with multi-plate limited-slip differential)

Non Limited Slip Differentials
BMW Synthetic Final Drive Oil (SAF-XO)
(without multi-plate limited-slip differential, or with viscous differential lock [325iX/iXA])
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Old 04-15-2009, 02:30 PM   #4
76m2002
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Quote:
Originally Posted by mrwianno View Post
for 2001 325xi, what is oil amount and specification for front transfer case.
For both Differentials I use Redline 75W90 Gear oil
For the transfer case and manual transmission I use Redline MTL



Ian
'01 325xiT
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Old 04-16-2009, 12:33 AM   #5
botaman
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See attached link from Turnermotorsport.

http://www.turnermotorsport.com/html...=E46Xi-REDLINE
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Old 04-16-2009, 11:22 AM   #6
76m2002
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Originally Posted by botaman View Post
See attached link from Turnermotorsport.

http://www.turnermotorsport.com/html...=E46Xi-REDLINE
Somehow "common knowledge" has deemed D4ATF as the replacement for the tranny and transfer case fluid. When you read the specs MTL is the closest replacement, D4ATF is a little thin. Either is probably okay as long as you change them regularly (every 30K), but I prefer MTL. It's helped noisy hard-shifting Getrag transmissions for at least 15 years, and is still great stuff.
Ian
'01 325xiT
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Old 04-16-2009, 02:32 PM   #7
GCoop
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Quote:
Originally Posted by 76m2002 View Post
Somehow "common knowledge" has deemed D4ATF as the replacement for the tranny and transfer case fluid. When you read the specs MTL is the closest replacement, D4ATF is a little thin. Either is probably okay as long as you change them regularly (every 30K), but I prefer MTL. It's helped noisy hard-shifting Getrag transmissions for at least 15 years, and is still great stuff.
Ian
'01 325xiT

+1
Couldn't agree more
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