BRAKE FLUID (what do you guys use) - Page 2

wwjd15 · 02-23-2012, 12:16 AM

Street: Motul 600, OEM, etc.
Street & Track: Motul 660, SRF, Endless 650

aus · 02-23-2012, 02:16 AM

Quote:

Originally Posted by Z K

Over other high performance fluids sure. Compared to a stock brake fluid, it will not last as long. I'm not talking about track use, I'm talking about every day driving where brake fluid stays in the car for 1-2 years.

Why do you say that?
The dry and WET boiling points of SRF is WAY higher than Ate, which is what the stock fluid is suppose to be.

.

Z K · 02-23-2012, 02:27 AM

Quote:

Originally Posted by aus

Why do you say that?
The dry and WET boiling points of SRF is WAY higher than Ate, which is what the stock fluid is suppose to be.

.

Just wet boiling point doesn't tell the whole story. How dirty the fluid gets over time and how fast it gets to the wet boiling point over time. Stock fluids are designed to last years in cars that are parked outside 24/7.

Bubbles · 02-23-2012, 07:26 AM

I use SRF for a year with 15+ track days. I only bled the fluid and the brakes work great. I do a full flush once a year and each time the fluid wasn't dirty (slightly off color) and pedal feel was still great.

I got tired of flushing the motul after every track day, once that fluid boils its done. It's track dependent, if the track is brutal on brakes then SRF would be my only choice if you don't plan on flushing the fluid after every track day. Over the course of a year, you'll save money using SRF.

I haven't tried the AP fluid or Endless so I can't comment on their performance, but I know SRF performs so I'm sticking with it.

Sean05 · 02-23-2012, 10:09 AM

Quote:

Originally Posted by wwjd15

Street: Motul 600, OEM, etc.
Street & Track: Motul 660, SRF, Endless 650

Thanks this clears it up...

tibra1 · 02-23-2012, 12:56 PM

Quote:

Originally Posted by Sean05

Thanks this clears it up...

If you are planning to pour some on the paint of the guy who keyed you..just use any old brand..all guranteed to strip paint..

Bubbles · 02-23-2012, 02:22 PM

Quote:

Originally Posted by tibra1

If you are planning to pour some on the paint of the guy who keyed you..just use any old brand..all guranteed to strip paint..

Slowly..no doubt.

persian54 · 02-23-2012, 03:31 PM

So if one has one brand in now, and one wants to change to a different brand, would one need more than 1L?
Or is 1L enough?

tibra1 · 02-23-2012, 03:36 PM

Quote:

Originally Posted by persian54

So if one has one brand in now, and one wants to change to a different brand, would one need more than 1L?
Or is 1L enough?

You need at least 2 for a flush..~ 1L for a bleed.

bigjae1976 · 02-23-2012, 04:15 PM

Quote:

Originally Posted by tibra1

You need at least 2 for a flush..~ 1L for a bleed.

Especially if you plan to bleed your clutch as well.

Bubbles · 02-23-2012, 04:57 PM

You end up using a little more than half the second bottle. Just split it with a buddy, cause that stuff isn't cheap. Not sure why you would use a liter for just bleeding though.

yyoo · 02-28-2012, 04:56 AM

I hear ultra-high temp brake fluids eat seals. Castrol SRF in particular and Motul 600 and 660 to a lesser extent. Anyone experience this issue?

bigjae1976 · 02-28-2012, 08:18 AM

Quote:

Originally Posted by yyoo

I hear ultra-high temp brake fluids eat seals. Castrol SRF in particular and Motul 600 and 660 to a lesser extent. Anyone experience this issue?

Never heard that. I know you can't use DOT5 fluid in our systems for some season. And then certain higher end fluid can't be mixed with other fluid. Motul 600/660 and SRF are not one of those...AFAIK.

Slapshot9 · 02-28-2012, 08:14 PM

Never had a problem with ATE gold or blue in my E36, and have not had a problem with factory fill brake fluid in my e90. Used Hawk blue pads on my E36 and Hawk HP Plus in my E90. I change the fluid every 3 mo.

tibra1 · 02-28-2012, 08:34 PM

Quote:

Originally Posted by bigjae1976

Never heard that. I know you can't use DOT5 fluid in our systems for some season. And then certain higher end fluid can't be mixed with other fluid. Motul 600/660 and SRF are not one of those...AFAIK.

You can use DOT 4 or 5.1 ...DOT 5 which is silcone based isnt miscible with DOT 4 or 5.1...if you use DOT 5 and you do not completely purge the system before conversion, the mixture may gel and result in serious braking issues

02-23-2012, 12:16 AM	#23
wwjd15 Drives: 11 E92 M3 MR Join Date: May 2009 Location: Orange County Posts: 1,258 iTrader: (6)	Street: Motul 600, OEM, etc. Street & Track: Motul 660, SRF, Endless 650 __________________ Build #1 NA: Big Willow 1:30.449 (NT01), Buttonwillow 13CW 1:56.634 (NT01), Autoclub Speedway Fontana 1:49.422 (NT01), Mfest2012 LMVS 1:59.002 (NT01+AD08), Streets of Willow 1:22.36 (RS3), Chuckwalla 2:02.46 (RS3), Laguna Seca 1:41.74 (R888), Infineon 1:50.346 (R888) Build #2 VF SC: Buttonwillow 13CW 1:54.037 (TD), Big Willow 1:29.63 (R888)

02-23-2012, 07:26 AM	#26
Bubbles Green Bastard Drives: ZCP-Powered Join Date: Jun 2007 Location: Bishop Bend Posts: 3,523 iTrader: (3)	I use SRF for a year with 15+ track days. I only bled the fluid and the brakes work great. I do a full flush once a year and each time the fluid wasn't dirty (slightly off color) and pedal feel was still great. I got tired of flushing the motul after every track day, once that fluid boils its done. It's track dependent, if the track is brutal on brakes then SRF would be my only choice if you don't plan on flushing the fluid after every track day. Over the course of a year, you'll save money using SRF. I haven't tried the AP fluid or Endless so I can't comment on their performance, but I know SRF performs so I'm sticking with it. Last edited by Bubbles; 02-23-2012 at 07:33 AM.

02-23-2012, 03:31 PM	#30
persian54 Lieutenant General Drives: MW E93 M3/E89 Z4 35i Join Date: Jun 2009 Location: The Valley, SoCal Posts: 15,411 iTrader: (260)	So if one has one brand in now, and one wants to change to a different brand, would one need more than 1L? Or is 1L enough? __________________ Next track day: http://www.m3post.com/forums/showthread.php?t=651089 Sorry I'm just someone who comes on here to fill a void..I dont have the $ to own a BMW. This is a nice E93:http://www.e90post.com/forums/showthread.php?t=434032

02-23-2012, 04:57 PM	#33
Bubbles Green Bastard Drives: ZCP-Powered Join Date: Jun 2007 Location: Bishop Bend Posts: 3,523 iTrader: (3)	You end up using a little more than half the second bottle. Just split it with a buddy, cause that stuff isn't cheap. Not sure why you would use a liter for just bleeding though. __________________

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02-28-2012, 04:56 AM	#34
yyoo Private First Class Drives: 2011 E90 M3 DCT Join Date: Nov 2011 Location: California Posts: 191 iTrader: (0)	I hear ultra-high temp brake fluids eat seals. Castrol SRF in particular and Motul 600 and 660 to a lesser extent. Anyone experience this issue?

02-28-2012, 08:14 PM	#36
Slapshot9 Second Lieutenant Drives: '08 E90 M3 JzB 6MT Join Date: Dec 2011 Location: SoFla Posts: 279 iTrader: (0)	Never had a problem with ATE gold or blue in my E36, and have not had a problem with factory fill brake fluid in my e90. Used Hawk blue pads on my E36 and Hawk HP Plus in my E90. I change the fluid every 3 mo.