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#1
12-10-2011, 10:42 AM
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fluid questions
couple of questions... i get the debate on the tranny fluid to change or not...not sure there... but the rear diff fluid...mobile 75-90?? can i put in 75-140 due to some mild towing?? what do we need for my front transfer case? i have 2001 x5 4.4 also thre seems to b a small leak on my transfer case as well?? any ideas? brakes will be flushed with BMW dot 4 PS looks good.. Green coolant...not good..will get flushed. Any thing i am missing?? thanks for the help. KDAWG 
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#2
12-10-2011, 11:35 AM
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Quote:
Yes I always use BMW brake/coolant. As far as diff, I stick with 75-90 Redline/M1/RP and leave the heavier weight for LSD (limited slip diff) kind, but I doubt it'll do any harm with you go with heavier oil on your X5. Welcome to the board.
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#3
12-10-2011, 02:11 PM
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I'd stay with 75w-90 for both differentials.
Since your vehicle is pre x-drive, use Dexron for the transfer case.
__________________
2007 X3 3.0si, 6 MT, Premium, White Retired: 2008 535i, 6 MT, M Sport, Premium, Space Grey 2003 X5 3.0 Steptronic, Premium, Titanium Silver 2002 325xi 5 MT, Steel Grey 2004 Z4 3.0 Premium, Sport, SMG, Maldives Blue
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#4
12-11-2011, 03:06 AM
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Quote:
Good question....do I need LSD fluids. Or bc we are AWD, no need?
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#5
12-11-2011, 01:48 PM
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Neither differential is a limited slip design. Limited slip differentials that have clutch plates use special LSD fluids. The X5 uses wheel brakes for traction control.
__________________
2007 X3 3.0si, 6 MT, Premium, White Retired: 2008 535i, 6 MT, M Sport, Premium, Space Grey 2003 X5 3.0 Steptronic, Premium, Titanium Silver 2002 325xi 5 MT, Steel Grey 2004 Z4 3.0 Premium, Sport, SMG, Maldives Blue
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#6
12-11-2011, 02:39 PM
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Thanks..now should I put 75-140 or stay with 90 some towing will be occurring, that is why I ask?
__________________
2013 X5 35D 2015 F350 2009 E90 M3 2007 GT3 1996 993 C4S 1991 964 Turbo 1994 D90 1989 E30 M3 1988 E30 M3 1972 cutlass supreme -sold- 1993 E34 S52 supercharged wagon 1988 E30 M3 henna 2002 E46 M3 1997 E36 M3 2001 X5 2006 4.8is 1998 e36 M3 track car 1995 e36 M3 track car
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#8
12-11-2011, 05:56 PM
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Quote:
__________________
2013 X5 35D 2015 F350 2009 E90 M3 2007 GT3 1996 993 C4S 1991 964 Turbo 1994 D90 1989 E30 M3 1988 E30 M3 1972 cutlass supreme -sold- 1993 E34 S52 supercharged wagon 1988 E30 M3 henna 2002 E46 M3 1997 E36 M3 2001 X5 2006 4.8is 1998 e36 M3 track car 1995 e36 M3 track car
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