BMW M3 Forum (E90 E92)

BMW Garage BMW Meets Register Search Today's Posts Mark Forums Read


Go Back   M3Post - BMW M3 Forum > E90/E92 M3 Technical Topics > Mechanical Maintenance: Break-in / Oil & Fluids / Servicing
 
OneEighty
Post Reply
 
Thread Tools Search this Thread
      09-09-2013, 11:59 AM   #1
apecush
Lieutenant
5

 
Drives: 2008 E90 M3
Join Date: Aug 2011
Location: Edmonton


Posts: 446
iTrader: (2)

Redline Fluids - A quick empirical report

A few months back I decided to deviate from the BMW recommended TWS motor oil and OEM transmission fluid. My car is an 08 with 40k miles on the clock and tracked 5-6 times a summer. I change my oil at double the recommended interval, and I believe my trans fluid change was the first since the 1200 mile change.

Using TWS, I would burn a litre of oil every 3 track days. After 3 track days using my Redline blend (8 quarts 10W60 with one quart of 5W40), the car hasn't registered any oil loss. I blended the two grades in an attempt to match the 100C kinematic viscosity of TWS, as the redline is a bit thicker. I'll do a blackstone analysis of the redline when I drain it. FWIW, I have noticed absolutely no change in mileage after switching oil (a good sign IMO).

As far as the transmission is concerned, I went to Redline D4 fluid. Initially, i noticed no difference in shifting compared to the fluid I pulled out. A couple track days and a thousand miles and the transmission now shifts a bit smoother.

For anybody considering Redline, I've noticed no noticeable drawbacks of using the fluids.
Appreciate 0
      09-09-2013, 12:14 PM   #2
CIFUM3
First Lieutenant
3

 
CIFUM3's Avatar
 
Drives: 08 E92 M3
Join Date: Jul 2013
Location: SoCal


Posts: 363
iTrader: (0)

Good to know! I just ordered to gallons of 10w60 from the redline website!
__________________
Performance
Revinora race+exhaust - Macht Schnell stage 2 intake - Macht Schnell down pipes - SOSI X-pipe - BPM stg2 tune
Looks
M colors grill - CF trunk - Sapphire Blue Forgestars F14
Appreciate 0
      09-09-2013, 12:22 PM   #3
thekurgan
Bad Lieutenant
United_States
31

 
thekurgan's Avatar
 
Drives: E90M3
Join Date: Aug 2007
Location: Sacramento


Posts: 2,849
iTrader: (0)

Garage List
2008 BMW M3  [0.00]
Agree on the Redline. I've run the 10w60 and MTL for a while now. You're right, the 10w-60 appears to be thicker as the oil temp is a bit higher with it compared to TWS.
__________________

08 E90M3 6MT Alpinweiss/Carbon/BMW Pedals/Dinan Exhaust/Rattle fixes
Appreciate 0
      09-09-2013, 02:08 PM   #4
FogCityM3
Lieutenant Colonel
31

 
FogCityM3's Avatar
 
Drives: M3 (E90)
Join Date: Feb 2012
Location: San Francisco


Posts: 1,664
iTrader: (0)

Used the 10W-60 and seemed fine, though in retrospect should probably be using something thinner after all the interesting comments (the credible ones that is) from earlier posts. What do you guys think of using Redline 5w-50?

http://www.redlineoil.com/product.aspx?pid=135&pcid=21
Appreciate 0
      09-09-2013, 02:40 PM   #5
thekurgan
Bad Lieutenant
United_States
31

 
thekurgan's Avatar
 
Drives: E90M3
Join Date: Aug 2007
Location: Sacramento


Posts: 2,849
iTrader: (0)

Garage List
2008 BMW M3  [0.00]
Quote:
Originally Posted by FogCityM3 View Post
Used the 10W-60 and seemed fine, though in retrospect should probably be using something thinner after all the interesting comments (the credible ones that is) from earlier posts. What do you guys think of using Redline 5w-50?

http://www.redlineoil.com/product.aspx?pid=135&pcid=21
I think, after reading as well, the thinner oil would only benefit the rod bearings, and that's just a theory. As to the other areas of the engine, designed for 10w-60, like the hydraulic lifter assemblies, who knows the effect of thinner weight on those critical areas.
__________________

08 E90M3 6MT Alpinweiss/Carbon/BMW Pedals/Dinan Exhaust/Rattle fixes
Appreciate 0
      09-09-2013, 02:54 PM   #6
Z K
Colonel
United_States
26

 
Z K's Avatar
 
Drives: E90 M3
Join Date: Jul 2011
Location: San Francisco


Posts: 2,152
iTrader: (3)

TWS thins down after driving a while. Redline seems to hold its weight better. Mixing in 1 quart of lower weight oil with Redline 10W60 seems like a good idea to get closer to TWS.
__________________
Auto Detailing Enthusiast!
Appreciate 0
      09-09-2013, 06:02 PM   #7
Billj747
Lieutenant
United_States
6

 
Billj747's Avatar
 
Drives: Everything
Join Date: Feb 2009
Location: Wellington, FL


Posts: 435
iTrader: (0)

Send a message via AIM to Billj747
Quote:
Originally Posted by Z K View Post
TWS thins down after driving a while. Redline seems to hold its weight better. Mixing in 1 quart of lower weight oil with Redline 10W60 seems like a good idea to get closer to TWS.
Someone should send in a sample of virgin redline 5W50 and 10W60 to see how the SUS Viscosity @ 212*F compares to TWS.

IMO if the 5W50 has a similar viscosity @ operating temp, then the benefit of the lighter base weight for cold starts and flow would just be huge positive. radiatorjoe? uses a blend of redline 40W and 5W30 with great blackstone reports but it's quite a bit lower SUS V than TWS. (68-73 vs. TWS's ~87).
__________________
Appreciate 0
      09-10-2013, 10:36 AM   #8
Porschefile
Major
16

 
Porschefile's Avatar
 
Drives: E92 M3
Join Date: Jul 2008
Location: Tennessee


Posts: 1,233
iTrader: (6)

I run redline diff fluid (and have for several thousand miles and several track days) and it has worked well.
Appreciate 0
      09-10-2013, 11:09 AM   #9
apecush
Lieutenant
5

 
Drives: 2008 E90 M3
Join Date: Aug 2011
Location: Edmonton


Posts: 446
iTrader: (2)

Quote:
Originally Posted by Porschefile View Post
I run redline diff fluid (and have for several thousand miles and several track days) and it has worked well.
Did you find that you needed to add any LSD modifier to the fluid to prevent chattering around corners? I bought fluid intending to make the change, only to realize that I bought 75W90, not 75W140.
Appreciate 0
      09-10-2013, 12:17 PM   #10
Porschefile
Major
16

 
Porschefile's Avatar
 
Drives: E92 M3
Join Date: Jul 2008
Location: Tennessee


Posts: 1,233
iTrader: (6)

Quote:
Originally Posted by apecush View Post
Did you find that you needed to add any LSD modifier to the fluid to prevent chattering around corners? I bought fluid intending to make the change, only to realize that I bought 75W90, not 75W140.
Nope, no unusual noises or performance.
Appreciate 0
      10-22-2013, 10:39 AM   #11
MVEED3
Second Lieutenant
United_States
2

 
Drives: '08 e90 M3/'12 S1k
Join Date: Sep 2008
Location: San Diego


Posts: 256
iTrader: (9)

Ape,

Do you have a 6spd or 7spd? Your comment of smoother shifts has my attention.


Allen
__________________
2012 Bluefire S1kRR
Ohlins~Akra~Brembo~Lightech~Gilles
2008 Sparkling Graphite e90 M3 6spd
AST~Vorshlag~Akra~Advan~Yoko~Pagid~BMW Performance
Appreciate 0
      10-22-2013, 11:13 AM   #12
Z K
Colonel
United_States
26

 
Z K's Avatar
 
Drives: E90 M3
Join Date: Jul 2011
Location: San Francisco


Posts: 2,152
iTrader: (3)

Quote:
Originally Posted by MVEED3 View Post
Ape,

Do you have a 6spd or 7spd? Your comment of smoother shifts has my attention.


Allen
The Redline D4 ATF the poster mentioned is only for use in the manual transmission.
__________________
Auto Detailing Enthusiast!
Appreciate 0
      10-22-2013, 01:03 PM   #13
dparm
Major
United_States
14

 
dparm's Avatar
 
Drives: 2011.5 E90 M3
Join Date: Jun 2013
Location: Chicago, IL


Posts: 1,447
iTrader: (0)

Red Line 10w60 is already thicker than TWS and is more shear stable, meaning that you're running something HEAVIER than stock. You need to ignore the kinematic viscosity values and focus more on the oils' HTHS value as it is more indicative of the operational viscosity.

TWS has a virgin HTHS of around 5.2 and shears to around 4.5ish, then holds steady for the remainder of the change interval. Red Line 10w60 has a virgin of HTHS of 5.8 and probably only shears to the mid- or low-5s over its service life.

That means the Red Line is some 15% heavier than the already-heavy TWS. Personally, I would've just run the Red Line 5w40 (HTHS 4.4) -- it's basically the same weight in-operation as TWS.
__________________
2011.5 AW M3 sedan ZCP
Appreciate 0
Post Reply

Bookmarks

Thread Tools Search this Thread
Search this Thread:

Advanced Search

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Forum Jump


All times are GMT -5. The time now is 08:46 AM.




m3post
Powered by vBulletin® Version 3.7.0
Copyright ©2000 - 2014, Jelsoft Enterprises Ltd.
1Addicts.com, BIMMERPOST.com, E90Post.com, F30Post.com, M3Post.com, ZPost.com, 5Post.com, 6Post.com, 7Post.com, XBimmers.com logo and trademark are properties of BIMMERPOST