Upgrading Manual Trans/Diff Fluid

Spoolin Montego · 03-26-2013, 02:02 PM

Has anyone has success switching the OE fluid out for redline or royal purple on the 135i manual transmission? I did it on my last 540 and it was a night and day difference. If so what fluids are recommended, especially weight wise.

RimasRS · 03-26-2013, 02:45 PM

So what was night and day power??? What you felt better?

Spoolin Montego · 03-26-2013, 03:22 PM

Quote:

Originally Posted by RimasRS

So what was night and day power??? What you felt better?

Overall feeling. Much smoother after changing it out after 90k miles. Was notchy going into second but it fixed that issue.

RimasRS · 03-26-2013, 03:24 PM

Quote:

Originally Posted by Spoolin Montego

Overall feeling. Much smoother after changing it out after 90k miles. Was notchy going into second but it fixed that issue.

Did you felt any difference in noise?

yawn · 03-26-2013, 10:02 PM

If you find notchiness going into 2nd, do this. It didn't eliminate it totally but there was improvement. It does help with redline ATF.

Colt · 03-26-2013, 10:25 PM

I have never changed the diff/manual fluid yet from the BMW grade fluid. Wondering about this also. Approaching 40k on a 2008

b1aze · 03-27-2013, 12:14 AM

I'm switching both out next week for redline oils.

RimasRS · 03-27-2013, 03:12 AM

Quote:

Originally Posted by b1aze

I'm switching both out next week for redline oils.

share your impressions..

b1aze · 03-27-2013, 06:29 AM

Quote:

Originally Posted by RimasRS

share your impressions..

Will do. I will also have Blackstone Labs run an oil analysis on the used fluid to get an idea of how well its wearing at ~40k miles. Will also do the diff fluid just for kicks.

joeo · 03-29-2013, 11:27 PM

I changed mine out for Redline fluids (trans + diff) about 22k miles ago. I will change it again soon. No issues, but right now it does feel a touch 'notchy' when cold.
http://lovehorsepower.com/joomla/ind...=326&Itemid=94

-Joe

SfValley335i · 03-29-2013, 11:56 PM

Ive put redline D6 into my manual trans and redline gear oil into the diff. Gear shifting was improved but over time I forgot how the oem fluid was like.

If I would do it again, I would get the D4 fluid for the trans. Just because I think the trans likes a slightly thicker oil.

dcaron9999 · 10-24-2013, 01:12 PM

If the D6 fluid seems to have thin viscosity, do you think the D4 fluid offers enough protection for someone who tracks his car?

Im getting ready to install M3 tranmission mounts on my 135i this week-end, to help with sloppy shifts under load. Car has 54,000Kms (33,000Miles).

While Im under there, would be perfect timing for a manual transmission fluid change. I want the best protection, and smoothest shifting possible, hot or cold, track or street. Maybe all this criteria this is impossible to be covered by one type of fluid.

Thinking about these:

Pentonsin MTF-LT-5
Redline D4-ATF
Redline MTL

dcaron9999 · 03-03-2014, 02:29 PM

Quick update on this. A couple of months ago, I decided to go with D4-ATF in my manual transmission, as per application guide on Redline site. Couldn't be happier with the results. Smooth and easier shifts, whether the outside temperature is hot (on the track) or cold (even during Canadian Winters).

ShocknAwe · 03-03-2014, 06:07 PM

Good to hear the D4ATF holds up well in the cold! I'm running it myself but we don't see much below freezing down here.

03-26-2013, 02:02 PM	#1
Spoolin Montego Captain 601 Rep 871 Posts Drives: 16 m3/20 x5m/23 m3 Join Date: Mar 2012 Location: Orange County iTrader: (1)	Upgrading Manual Trans/Diff Fluid Has anyone has success switching the OE fluid out for redline or royal purple on the 135i manual transmission? I did it on my last 540 and it was a night and day difference. If so what fluids are recommended, especially weight wise.
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03-26-2013, 02:45 PM	#2
RimasRS Colonel 85 Rep 2,438 Posts Drives: BMW X3 SD Join Date: Sep 2010 Location: Europe iTrader: (0)	So what was night and day power??? What you felt better?
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03-26-2013, 10:02 PM	#5
yawn Lieutenant 56 Rep 552 Posts Drives: M2 Competition Join Date: Mar 2012 Location: Home iTrader: (0)	If you find notchiness going into 2nd, do this. It didn't eliminate it totally but there was improvement. It does help with redline ATF.
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03-27-2013, 12:14 AM	#7
b1aze Just one more taste... 566 Rep 2,011 Posts Drives: 2013 128i 6MT MSport Join Date: Aug 2012 Location: Uxbridge MA iTrader: (18)	I'm switching both out next week for redline oils. __________________ My Build Thread: Jet Black 6MT 128i with MSport
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03-29-2013, 11:27 PM	#10
joeo Lieutenant 120 Rep 475 Posts Drives: 2009 Crimson Red 135i Join Date: Mar 2008 Location: Sterling, Va iTrader: (0) Garage List 2009 BMM 135i [9.50]	I changed mine out for Redline fluids (trans + diff) about 22k miles ago. I will change it again soon. No issues, but right now it does feel a touch 'notchy' when cold. http://lovehorsepower.com/joomla/ind...=326&Itemid=94 -Joe
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03-29-2013, 11:56 PM	#11
SfValley335i Colonel 164 Rep 2,409 Posts Drives: Current:135i Sold:335i sedan Join Date: Mar 2007 Location: City of Angels iTrader: (8)	Ive put redline D6 into my manual trans and redline gear oil into the diff. Gear shifting was improved but over time I forgot how the oem fluid was like. If I would do it again, I would get the D4 fluid for the trans. Just because I think the trans likes a slightly thicker oil.
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10-24-2013, 01:12 PM	#12
dcaron9999 Major 157 Rep 1,409 Posts Drives: 2011 135i M package Join Date: Jan 2010 Location: Mirabel, Quebec iTrader: (0)	If the D6 fluid seems to have thin viscosity, do you think the D4 fluid offers enough protection for someone who tracks his car? Im getting ready to install M3 tranmission mounts on my 135i this week-end, to help with sloppy shifts under load. Car has 54,000Kms (33,000Miles). While Im under there, would be perfect timing for a manual transmission fluid change. I want the best protection, and smoothest shifting possible, hot or cold, track or street. Maybe all this criteria this is impossible to be covered by one type of fluid. Thinking about these: Pentonsin MTF-LT-5 Redline D4-ATF Redline MTL __________________ 2011 X3 35i with M pack + 2011 135i w/6SPMT \| 255 square tire setup \| Quaife 3.46 LSD \| Diff lock down bracket \| Bilstein B8+Swift SpecR springs+H&R FSB \| CDV delete \| BMS Oil Tstat bypass \| ER FMIC & CP \| N54Tuning DP \| GC Street Camber Plates \| M3 FCA +guide rods+RSFB's+Tranny mounts \| Manzo toe arms \| Cobb Stg2 agressive tune \| Hawk DTC70 brake pads \| RB SS brake pistons \| Goodridge SS brake lines \| Custom brake cooling ducts
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03-03-2014, 02:29 PM	#13
dcaron9999 Major 157 Rep 1,409 Posts Drives: 2011 135i M package Join Date: Jan 2010 Location: Mirabel, Quebec iTrader: (0)	Quick update on this. A couple of months ago, I decided to go with D4-ATF in my manual transmission, as per application guide on Redline site. Couldn't be happier with the results. Smooth and easier shifts, whether the outside temperature is hot (on the track) or cold (even during Canadian Winters). __________________ 2011 X3 35i with M pack + 2011 135i w/6SPMT \| 255 square tire setup \| Quaife 3.46 LSD \| Diff lock down bracket \| Bilstein B8+Swift SpecR springs+H&R FSB \| CDV delete \| BMS Oil Tstat bypass \| ER FMIC & CP \| N54Tuning DP \| GC Street Camber Plates \| M3 FCA +guide rods+RSFB's+Tranny mounts \| Manzo toe arms \| Cobb Stg2 agressive tune \| Hawk DTC70 brake pads \| RB SS brake pistons \| Goodridge SS brake lines \| Custom brake cooling ducts
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03-03-2014, 06:07 PM	#14
ShocknAwe 1Addict 3233 Rep 7,893 Posts Drives: E82 Mutt, M57 Truck Join Date: Jul 2012 Location: Charleston iTrader: (22)	Good to hear the D4ATF holds up well in the cold! I'm running it myself but we don't see much below freezing down here. __________________ 2010 135i 6MT Jet Black N54/3 FE82 Mutt \| BUILD THREAD \| GARAGE SALE
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