Brake fluid - Page 2

MatthewAMEL · 08-22-2018, 04:16 PM

Quote:

Originally Posted by Gunkk

start at 0:30sec

https://youtube.com/watch?v=w3yrxrcxTUc

IIRC, that was a brake line failure.

bpang1234 · 08-22-2018, 05:14 PM

Quote:

Originally Posted by Stealth7

You have to swap out the other fluids much more frequently than Castrol srf and nothing really beats the resistance to Boiling of Castrol srf. Motul in particular must be swapped out regularly

Yeah one thing people don't consider is how quickly some of the race fluids can go from "Dry" to "Wet". Motul is kind of known for being quicker than most to absorb water...not crazy but certainly not among the longer lasting choices. It makes up for it by being not all that expensive and really the lifespan lines up with the frequency that most people like to bleed their brakes for stiffer feel.

I use the Castrol SRF and have been enjoying it so far. I'll know more next race season as this season was cut short for me due to motor problems.

thescreensavers · 08-22-2018, 08:46 PM

For fluids that absorbed water quickly just flush before a track day.

I'm curious about Brembo Racing HTC 64T better hot compressibility than Castrol. I purchased a brake fluid moisture gauge to check up on it but won't be using it until ~December

gotroost · 08-22-2018, 09:17 PM

My vote for Castrol SRF. My 2010 2SS was brutal on the brakes with DBA rotors and Hawk DTC 70 front and DTC 60 rears. Ran Inde Motorsports Ranch and used new for 1 weekend, bled for the second weekend and replaced after that. After any weekend, felt spongy until bled. Great fluid, but any of them take a beating slowing down 4000 pounds when late braking.

protovack · 08-25-2018, 12:42 AM

This page breaks it down perfectly:
https://thebuildjournal.com/tech-gui...view-analysis/

protovack · 09-09-2018, 12:22 AM

OP, you can do an occasional light track day on your OEM fluid. If you are not pushing the car very hard, you can get away with it easily. However when you start to push the limits, you will need something better. Read the linked article it explains everything.

When I got my 1LE, I bled and replaced the OEM fluid with Motul 600 because it was late in the season and I was quickly coming up on 2-3 track days that I wanted to do. I knew it wasn't "the best" but it was cheap and would be good enough to get me through a few track days. Next year I'll start off with fresh SRF.

If you track your car, break fluid becomes a consumable. You have two options--use cheaper tier 2 fluid such as Motul and replace it regularly. Or, use more expensive tier 1 and it will last longer and have better performance. From what I understand, you could track with SRF throughout a season and then keep it in your car for the rest of the year. Perhaps someone can jump in with more experience here...could you then go on to track it the next season still on the same SRF?

08-22-2018, 09:17 PM	#18
gotroost Drives: 2021 Crush ZL1 1LE Join Date: Oct 2009 Location: Sierra Vista, AZ Posts: 1,119 View My Garage	My vote for Castrol SRF. My 2010 2SS was brutal on the brakes with DBA rotors and Hawk DTC 70 front and DTC 60 rears. Ran Inde Motorsports Ranch and used new for 1 weekend, bled for the second weekend and replaced after that. After any weekend, felt spongy until bled. Great fluid, but any of them take a beating slowing down 4000 pounds when late braking. __________________ 2021 Crush ZL1 1LE

08-22-2018, 08:46 PM	#17
thescreensavers Drives: SW 1SS 1LE / Jeep XJ Join Date: Mar 2016 Location: WPB,FL Posts: 799	For fluids that absorbed water quickly just flush before a track day. I'm curious about Brembo Racing HTC 64T better hot compressibility than Castrol. I purchased a brake fluid moisture gauge to check up on it but won't be using it until ~December

08-25-2018, 12:42 AM	#19
protovack Drives: 2019 2LT 2.0T M6 Riverside Blue Join Date: Jan 2018 Location: WA Posts: 847	This page breaks it down perfectly: https://thebuildjournal.com/tech-gui...view-analysis/

09-09-2018, 12:22 AM	#20
protovack Drives: 2019 2LT 2.0T M6 Riverside Blue Join Date: Jan 2018 Location: WA Posts: 847	OP, you can do an occasional light track day on your OEM fluid. If you are not pushing the car very hard, you can get away with it easily. However when you start to push the limits, you will need something better. Read the linked article it explains everything. When I got my 1LE, I bled and replaced the OEM fluid with Motul 600 because it was late in the season and I was quickly coming up on 2-3 track days that I wanted to do. I knew it wasn't "the best" but it was cheap and would be good enough to get me through a few track days. Next year I'll start off with fresh SRF. If you track your car, break fluid becomes a consumable. You have two options--use cheaper tier 2 fluid such as Motul and replace it regularly. Or, use more expensive tier 1 and it will last longer and have better performance. From what I understand, you could track with SRF throughout a season and then keep it in your car for the rest of the year. Perhaps someone can jump in with more experience here...could you then go on to track it the next season still on the same SRF?

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