Advise needed on Motul RBF 600 brake fluid

mmm_03 · 10-05-2010, 06:43 AM

Hi Guys! I'm about to upgrade my brake lines to Stop Tech's SS Brake Lines and at the same time switch to Motul RBF 600 brake fluid for occasional track days. But my BMW service advisor warned me that once I change my brake fluids, it will void my warranty. My M3 E92 is just 4 months old and I don't want to risk voiding my 2 year unlimited mileage warranty. Can anyone who has upgraded their brake fluids to Motul RBF600 chime in their thoughts on this issue? Did your local BMW dealer tell you the same thing? Will they be able to detect if someone has indeed replaced their brake fluids to a different brand?

turb934 · 10-05-2010, 07:24 AM

My dealer installed Motul 600. Was not an issue.

LiM3y · 10-05-2010, 07:56 AM

My SA specifically asked if I wanted a brake fluid flush when time was due because he knows that I have been using Ate Gold for track days and might not want 'lower spec' brake fluid in the system.

Bubbles · 10-05-2010, 08:04 AM

FYI. Motul looks just like BMW OEM fluid after a bit of use.

R A W L S · 10-05-2010, 09:22 AM

Agreed. They won't be able to tell the difference in brake fluids after a little use. Do you know if they void your warranty if you install the SS brake lines? if so, I would just go with the fluid and skip the SS brake lines - which they would be able to identify without question. Also, you now know you have a dealer that is warranty void happy. Do not consult with them on mods - other than bmw performance parts. Good luck!

mmm_03 · 10-05-2010, 09:33 AM

Thanks for your inputs guys! Anyone felt any immediate improvement of Motul RBF 600 over stock brake fluid? Is there any noticeable difference in braking power or brake pedal feel? I hope guys who have used Motul RBF 600 would chime in. Thanks in advance!

jrlee53 · 10-05-2010, 09:57 AM

I used this on my old 03 Cobra, didn't really notice much difference. I think you'd need to really be tracking the car a lot or have had used really cheap fluid to tell the difference. I have a few fresh unopened bottles left in case you want them. I ordered a case thinking i was going to keep the car around until it started showing its old Ford quality.

mmm_03 · 10-05-2010, 10:16 AM

Quote:

Originally Posted by JDy80

I used this on my old 03 Cobra, didn't really notice much difference. I think you'd need to really be tracking the car a lot or have had used really cheap fluid to tell the difference. I have a few fresh unopened bottles left in case you want them. I ordered a case thinking i was going to keep the car around until it started showing its old Ford quality.

Thanks for your kind offer, but I guess I might just have to stick with the stock brake fluids and brake lines for now until maybe after my warranty period has expired. I don't plan to track my car that much anyway. Thanks for your inputs though!

montreal red · 10-05-2010, 11:52 AM

better fluid will definitely help with bake fade. now you may or may not need it. i didnt have much brake fade with 20 min sessions but when i moved up to 30min sessions, brake fade was a huge problem. i changed my fluid and installed SS lines and it helped a lot.

my SA knows that i have aftermarket fluid and line on my car but didnt give me any problems at all. i just changed my rotors and pads under warranty. when i go on to the track, i use Hawk HP+ pads so they eat through rotors even more quickly but i still didnt have any warranty issues.

aus · 10-05-2010, 05:21 PM

If you're going to spend the money on Motul, you might as well get Castrol SRF. It has a considerably higher wet boiling point, which is the important number to look at.

R A W L S · 10-05-2010, 06:02 PM

If you won't be tracking your car much, just don't bother with the fluid change. You won't really won't notice enough difference in daily driving to make it worth it. Just go a bit easier on your brakes on track day. People typically upgrade their brake fluid when they spend a lot of time on the track and they want to avoid brake fade.

mmm_03 · 10-05-2010, 08:02 PM

Quote:

Originally Posted by montreal red

better fluid will definitely help with bake fade. now you may or may not need it. i didnt have much brake fade with 20 min sessions but when i moved up to 30min sessions, brake fade was a huge problem. i changed my fluid and installed SS lines and it helped a lot.

my SA knows that i have aftermarket fluid and line on my car but didnt give me any problems at all. i just changed my rotors and pads under warranty. when i go on to the track, i use Hawk HP+ pads so they eat through rotors even more quickly but i still didnt have any warranty issues.

Wow! That's great to hear. I hope my SA is as flexible and open minded as yours. Thanks for your inputs!

mmm_03 · 10-05-2010, 08:05 PM

Quote:

Originally Posted by R A W L S

If you won't be tracking your car much, just don't bother with the fluid change. You won't really won't notice enough difference in daily driving to make it worth it. Just go a bit easier on your brakes on track day. People typically upgrade their brake fluid when they spend a lot of time on the track and they want to avoid brake fade.

Good point! I guess I will just take it easy on the brakes and stay with my stock brake lines and fluids for now until perhaps my warranty period has elapsed. Thanks for your inputs RAWLS.

10-05-2010, 06:43 AM	#1
mmm_03 Private 15 Rep 74 Posts Drives: m3 Join Date: Mar 2010 Location: ph iTrader: (0)	Advise needed on Motul RBF 600 brake fluid Hi Guys! I'm about to upgrade my brake lines to Stop Tech's SS Brake Lines and at the same time switch to Motul RBF 600 brake fluid for occasional track days. But my BMW service advisor warned me that once I change my brake fluids, it will void my warranty. My M3 E92 is just 4 months old and I don't want to risk voiding my 2 year unlimited mileage warranty. Can anyone who has upgraded their brake fluids to Motul RBF600 chime in their thoughts on this issue? Did your local BMW dealer tell you the same thing? Will they be able to detect if someone has indeed replaced their brake fluids to a different brand?
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10-05-2010, 07:24 AM	#2
turb934 First Lieutenant 23 Rep 325 Posts Drives: E92 M3 Join Date: Aug 2007 Location: Oshawa, Ontario, Canada iTrader: (0)	My dealer installed Motul 600. Was not an issue. __________________ 08 E92 Interlagos blue, AFE filter, AA X-Pipe & HFC, AA pulley, AA software V1.5, Eisenmann race, M Performance Steering Wheel II, Pagid RS19's, Stoptech SS brake hoses, RAC RG63 Silver, Motul 600, E93 front & rear stablizer bars, M3 Competition Package Carbon Fiber Rear Lip Spoiler, Vorsteiner GTS3 carbon fiber front bumper & vented hood.
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10-05-2010, 07:56 AM	#3
LiM3y Major 70 Rep 1,339 Posts Drives: 2008 E90 M3 Join Date: Jun 2009 Location: CT iTrader: (5)	My SA specifically asked if I wanted a brake fluid flush when time was due because he knows that I have been using Ate Gold for track days and might not want 'lower spec' brake fluid in the system.
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10-05-2010, 08:04 AM	#4
Bubbles Brigadier General 2753 Rep 4,445 Posts Drives: Green Bastard Join Date: Jun 2007 Location: Bishop Bend iTrader: (3)	FYI. Motul looks just like BMW OEM fluid after a bit of use. __________________
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10-05-2010, 09:22 AM	#5
R A W L S R A W L S 17 Rep 164 Posts Drives: 1997 M3 Join Date: May 2010 Location: _____________________ iTrader: (0) Garage List 2008 M3 [0.00]	Agreed. They won't be able to tell the difference in brake fluids after a little use. Do you know if they void your warranty if you install the SS brake lines? if so, I would just go with the fluid and skip the SS brake lines - which they would be able to identify without question. Also, you now know you have a dealer that is warranty void happy. Do not consult with them on mods - other than bmw performance parts. Good luck!
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10-05-2010, 09:33 AM	#6
mmm_03 Private 15 Rep 74 Posts Drives: m3 Join Date: Mar 2010 Location: ph iTrader: (0)	Thanks for your inputs guys! Anyone felt any immediate improvement of Motul RBF 600 over stock brake fluid? Is there any noticeable difference in braking power or brake pedal feel? I hope guys who have used Motul RBF 600 would chime in. Thanks in advance!
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10-05-2010, 09:57 AM	#7
jrlee53 Captain 157 Rep 838 Posts Drives: 2010 E90 M3 Join Date: Sep 2009 Location: Queens, NY iTrader: (0)	I used this on my old 03 Cobra, didn't really notice much difference. I think you'd need to really be tracking the car a lot or have had used really cheap fluid to tell the difference. I have a few fresh unopened bottles left in case you want them. I ordered a case thinking i was going to keep the car around until it started showing its old Ford quality. __________________ 2003 Cobra -> 2010 BMW e90 M3 - Space Grey - Black on Carbon Leather Int. - BRILLIANT CAR!!
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10-05-2010, 11:52 AM	#9
montreal red chris 278 Rep 12,144 Posts Drives: White Boat Join Date: Jun 2007 Location: Toronto iTrader: (31)	better fluid will definitely help with bake fade. now you may or may not need it. i didnt have much brake fade with 20 min sessions but when i moved up to 30min sessions, brake fade was a huge problem. i changed my fluid and installed SS lines and it helped a lot. my SA knows that i have aftermarket fluid and line on my car but didnt give me any problems at all. i just changed my rotors and pads under warranty. when i go on to the track, i use Hawk HP+ pads so they eat through rotors even more quickly but i still didnt have any warranty issues. __________________ Current: 2013 F10 M5 & 2016 Mini JCW 2013 GLK350 (gone), 997.1 GT3RS (gone), 2009 WRX STI (gone), e92 M3 (gone)
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10-05-2010, 05:21 PM	#10
aus Major General 892 Rep 9,032 Posts Drives: Odysse Join Date: Jul 2005 Location: Seal Beach, CA iTrader: (10)	If you're going to spend the money on Motul, you might as well get Castrol SRF. It has a considerably higher wet boiling point, which is the important number to look at. __________________ Let me get this straight... You are swapping out parts designed by some of the top engineers in the world because some guys sponsored by a company told you it's "better??" But when you ask the same guy about tracking, "oh no, I have a kid now" or "I just detailed my car." or "i just got new tires."
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10-05-2010, 06:02 PM	#11
R A W L S R A W L S 17 Rep 164 Posts Drives: 1997 M3 Join Date: May 2010 Location: _____________________ iTrader: (0) Garage List 2008 M3 [0.00]	If you won't be tracking your car much, just don't bother with the fluid change. You won't really won't notice enough difference in daily driving to make it worth it. Just go a bit easier on your brakes on track day. People typically upgrade their brake fluid when they spend a lot of time on the track and they want to avoid brake fade.
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