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| 11-22-2014, 07:22 PM | #1 |
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Second Lieutenant
 
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z4 M differential fluid
Looking to change the fluid in my differential. I'm finding it difficult to find the SAF-XJ without the Friction Modifier (83221467993). I've seen some posts saying that the Castrol Syntrax 75W-140 is equivalent. Has anyone used this or found any other substitute?
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CDV delete, clutch stop, BMW pedals, Strongstrut bar, CF rad & coil cover, M3 reps, roundel under hood, Intravee II, air bag sticker delete, first aid storage, painted reflectors, headlight washer disable, Skyer CF front lip, Short shift kit, Leather Z arm rest, Stromung exhaust, RPI scoop, RTAB limiters, powerflex bushings, TC Kline DA coilovers, PB big brake kit, Skyer CF rear spoiler and diffuser, oil pressure and water temp guages.
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| 11-22-2014, 08:58 PM | #2 |
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| 11-22-2014, 09:20 PM | #3 |
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Major
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I have some Redline on deck for my next change. I'm not home some I don't have the spec in front of me but I got what Mike Miller recommends for Ms.
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| 11-23-2014, 12:19 AM | #4 | |
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Drives: '07 Z4 3.0si Coupe
Join Date: Jan 2013
Location: Knoxville, TN
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| 11-23-2014, 06:53 AM | #5 |
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Captain
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I changed to Liqui Moly 75w-140 about 20k miles. No problem or any noise from diff.
http://www.liqui-moly.de/liquimoly/p...d/en_4421.html |
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| 11-23-2014, 12:30 PM | #7 |
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Bad Lieutenant
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Redline can be had without the FM within it, it can be sold separately and added if you encounter chatter. I never use the BMW FM stuff, it defeats the diff's purpose IMO.
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02 E39M5 | TiAg/Schwartz | Tubi Rumore | Ultimate Ti Pedals | E60 SSK | Jim Blanton 3.45 40/100% | Coby Alcantara | StrongStrut STB
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| 11-23-2014, 12:55 PM | #8 |
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M = Midlife Crisis
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2006 Z4MC - #LL93158
SS Race Cans, RE X Pipe, DKF Sec 1, Fabspeed Headers, OE STB, AS Shifter, Dave Z CDV, GC Coil Overs, Stoptech lines, Hawk DTC Pads, RE Clutch Stop, RE Transmission Mounts, Vibra-Technics Engine Mounts, Poly FCAB & RTAB, LeatherZ M Shift Boot, Tekarbon Rear Spoiler, CF Grills, Advan RS DGM |
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| 11-23-2014, 12:57 PM | #9 | |
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M = Midlife Crisis
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2006 Z4MC - #LL93158
SS Race Cans, RE X Pipe, DKF Sec 1, Fabspeed Headers, OE STB, AS Shifter, Dave Z CDV, GC Coil Overs, Stoptech lines, Hawk DTC Pads, RE Clutch Stop, RE Transmission Mounts, Vibra-Technics Engine Mounts, Poly FCAB & RTAB, LeatherZ M Shift Boot, Tekarbon Rear Spoiler, CF Grills, Advan RS DGM |
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| 11-23-2014, 03:20 PM | #10 | |
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Bad Lieutenant
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All my BMW diffs have groaned in the cold. It's funny we see these posts most often when winter approaches or sets in 
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02 E39M5 | TiAg/Schwartz | Tubi Rumore | Ultimate Ti Pedals | E60 SSK | Jim Blanton 3.45 40/100% | Coby Alcantara | StrongStrut STB
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| 11-23-2014, 05:15 PM | #11 | |
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M = Midlife Crisis
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Quote:
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2006 Z4MC - #LL93158
SS Race Cans, RE X Pipe, DKF Sec 1, Fabspeed Headers, OE STB, AS Shifter, Dave Z CDV, GC Coil Overs, Stoptech lines, Hawk DTC Pads, RE Clutch Stop, RE Transmission Mounts, Vibra-Technics Engine Mounts, Poly FCAB & RTAB, LeatherZ M Shift Boot, Tekarbon Rear Spoiler, CF Grills, Advan RS DGM |
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