Brake fluid factory fill DOT4? - Page 2

RamAir02 · 09-03-2021, 09:47 AM

Quote:

Originally Posted by Silent_H_

I don't plan on tracking it more than a few times a year so I probably don't need to go with the SRF quite yet. I will definitely swap out the factory fill though!

I didn't think about cold weather with the clutch - where I live we often get below 0 temps. I've definitely felt the clutch be "slow" in previous cars on extra cold days. I assume leaving the RBF600 would be ok even during winter though?

It's not really about how many times a year you track your car. It you're hotlapping the car, you will boil most DOT4 fluids and your brake pedal will feel "soft" which reduces confidence. I've had soft brake feel with Motul 660 towards the end of a session. I haven't had that issue with Castrol SRF.

Norm Peterson · 09-03-2021, 10:35 AM

Quote:

Originally Posted by RamAir02

It's not really about how many times a year you track your car. It you're hotlapping the car, you will boil most DOT4 fluids and your brake pedal will feel "soft" which reduces confidence. I've had soft brake feel with Motul 660 towards the end of a session. I haven't had that issue with Castrol SRF.

Braking demands for your ZL1/1LE are likely a lot greater (heavier car, from faster speeds) than what Silent's V6/1LE can ever see. Just sayin'

Norm

Silent_H_ · 09-03-2021, 10:51 AM

Quote:

Originally Posted by Norm Peterson

Braking demands for your ZL1/1LE are likely a lot greater (heavier car, from faster speeds) than what Silent's V6/1LE can ever see. Just sayin'

Norm

Good point - I won't be reaching anywhere near the speeds a ZLE can!

The V6 1LE has mostly the same running gear (rear brakes are different) as the non-1LE SS but is just slower and a bit lighter.

Thanks all for your input!

wrankin · 06-06-2022, 05:48 PM

Reviving this old thread - How much brake fluid do I need to flush and change over to DOT 4 or 5.1?

Bill

2004YZFR1 · 06-06-2022, 07:48 PM

Quote:

Originally Posted by wrankin

Reviving this old thread - How much brake fluid do I need to flush and change over to DOT 4 or 5.1?

Bill

2 liters should do a full flush.

wrankin · 06-06-2022, 08:30 PM

Quote:

Originally Posted by 2004YZFR1

2 liters should do a full flush.

Thanks for responding

Bill

2004YZFR1 · 06-06-2022, 09:18 PM

Quote:

Originally Posted by wrankin

Thanks for responding

Bill

UnknownJinX · 06-10-2022, 04:27 PM

Quote:

Originally Posted by 2004YZFR1

2 liters should do a full flush.

I don't even think you need 2 litres. I did my brake fluid flush last weekend and I didn't even use up the 1 litre bottle of Castrol SRF I had, and that included a Ranger clutch "bleed".

And just some feedback and observations: the Motul RBF 600 I put in towards the end of summer last year was definitely getting stale. I went to a newbie-level track day about a month ago and we weren't even pushing the cars, and my brake pedals would get noticeably softer(but not dangerously soft) by the end of a 20-minute session. When I was at the same track last year, the RBF 600 was still fresh and I was definitely pushing the car harder, I didn't have that issue so yeah, the fluid definitely absorbed some water in the garage over the winter. There was even a Mazdaspeed6 that went off the track at one point because the RBF 660 in that car got really stale and boiled, so he lost the brakes.

I did mine the two-man way and flushed until the fluid coming out is nice and clean. Still took me less than a litre. Better safe than sorry, though. You can always return the bottles that haven't been opened.

RamAir02 · 06-10-2022, 06:38 PM

Might be a good time to stock up on SRF. This is the best price I've seen ever. Last year I paid $74
https://www.amazon.com/gp/product/B002OPE4OC/

arpad_m · 06-10-2022, 09:09 PM

Quote:

Originally Posted by UnknownJinX

And just some feedback and observations: the Motul RBF 600 I put in towards the end of summer last year was definitely getting stale. I went to a newbie-level track day about a month ago and we weren't even pushing the cars, and my brake pedals would get noticeably softer(but not dangerously soft) by the end of a 20-minute session. When I was at the same track last year, the RBF 600 was still fresh and I was definitely pushing the car harder, I didn't have that issue so yeah, the fluid definitely absorbed some water in the garage over the winter. There was even a Mazdaspeed6 that went off the track at one point because the RBF 660 in that car got really stale and boiled, so he lost the brakes.

That's why I keep a garage dehumidifier on at all times, at least trying to preserve it as long as possible. I'll see how long the RBF 600 we put in last October will stay usable.

Minerbros66 · 06-12-2022, 04:53 PM

Does anyone know the part number for the DOT 4 cap? Swapping mine out for DOT 4 and would like to have that cap.

UnknownJinX · 06-13-2022, 02:02 PM

Quote:

Originally Posted by arpad_m

That's why I keep a garage dehumidifier on at all times, at least trying to preserve it as long as possible. I'll see how long the RBF 600 we put in last October will stay usable.

Welp, that's not really an option in an apartment, and our winter isn't too cold, but very rainy.

In street driving there really won't be much difference. It's on the track where it will become an issue.

06-06-2022, 05:48 PM	#18
wrankin Camaros Of Northwest Ohio Drives: 2016 Black 2SS Join Date: Nov 2013 Location: Perrysburg OH Posts: 878 View My Garage	Reviving this old thread - How much brake fluid do I need to flush and change over to DOT 4 or 5.1? Bill __________________ 2023 2SS 1LE Red Hot 2016 2SS Black / Black & Arenaline Red (sold) 2023 GMC Canyon Denali 2013 2SS / RS - AGM / Jet Black (sold) 1970 1/2 Z/28 Classic Copper / Tan (sold many years ago)

06-10-2022, 06:38 PM	#23
RamAir02 Shadow Gray '19 ZLE M6 Drives: '19 ZL1 1LE M6 Join Date: Apr 2009 Location: NJ Posts: 1,440 View My Garage	Might be a good time to stock up on SRF. This is the best price I've seen ever. Last year I paid $74 https://www.amazon.com/gp/product/B002OPE4OC/ Attached Images __________________ 2019 ZL1 1LE \| M6 \| SGM \| PDR \| CF Dash \| Nav \| Wheel Locks PPF \| Paint Correction \| ZL1 Addons Rock Guards \| ZL1 Addons Lift Pads \| ZL1 Addons Feather Lite Tow Hook \| JWM Smoked Sidemarkers \| Wildhammer Smoked Rear Reflectors \| JWM License Plate LEDs \| RotoFab CAI \| ADM IC Reservoir v2 \| BC Forged RZ05 \| SPL Toe Arms \| BW Brake Deflectors \| CMS Roll Bar \| Schroth Profi II ASM Harnesses . Sold: '99 Trans Am (bolt-ons & cam) \| '00 WS6 (bolt-ons, heads, cam, 12 bolt) \| '05 CTS-V (bolt-ons, short throw) \| '10 SS/RS M6 (short throw, CAI, coilovers, LTs, catback, JRE tune) \| '01 WS6 YouTube

06-12-2022, 04:53 PM	#25
Minerbros66 Drives: 2020 Camaro 2SS, 2018 Shelby Raptor Join Date: Apr 2020 Location: Michigan Posts: 103	Does anyone know the part number for the DOT 4 cap? Swapping mine out for DOT 4 and would like to have that cap. __________________ 2020 Camaro 2SS A10 2018 Shelby Baja Raptor #87

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