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Suspension | Chassis | Brakes -- Sponsored by 949 Racing Relating to suspension, chassis, and brakes. Sponsored by 949 Racing.


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Old 12-08-2015, 02:13 PM   #57
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Quote:
Originally Posted by stugray View Post
Two questions:


1 - I am due to change my BF in my DD (35k miles), and I have a few quarts of ATE super blue that is a few years old (never opened).
Can I use that to push out the old stock BRZ fluid (are all DOT4 BFs compatible with each other)


AND


2 - Regarding having the absolute highest boiling point of BF in a race car.
I was told by a brake expert at driver's school that you will ruin the piston seals in brakes at 400deg ( I assume he meant 400F).
So if that is the case, wouldn't we WANT the fluid to boil and let you know you are cooking the calipers BEFORE you destroy the seals?
Just curious.


Seems to me that IF you boil ANY of the fluids in the chart on page 1, you have already ruined the seals....
1. Yes you can, but you'd use just as much of the "new" fluid to bleed the new fluid after the intermediary fluid.

2. Caliper temperature is not the same as brake fluid temperature. Remember, as fluid compresses (placed under pressuer), it also increases in heat, and the caliper is partially sinking away heat from the pads.

Generally you want to keep caliper temps under 250. If you get hotter than that, it's a sign that you have an inadequate braking system for what you're doing. Using ultra high temp brake fluid is one way of partially band-aiding that, which is really what you're doing with this fluid. Not everyone wants to get a BBK.
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Old 05-28-2016, 10:42 PM   #58
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Does anyone use Bloxygen or similar to protect partially used containers with brake fluid from moisture?

http://www.bloxygen.com/home.html
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Old 06-29-2016, 12:19 AM   #59
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RBF660 v RT700.

After reading thread, two questions for CSG

A) with frequent and rigorous tracking, does the data suggest that RT700 require less frequent brake bleeding than RBF660 to maintain comparable performance ?

And

B) with RBF660 at approx $28/500 ml and RT700 at $34/500 ml, and less frequent brake bleeding; does RT700 result in lower cost per track day ?
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Old 06-29-2016, 01:27 AM   #60
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Yes & Yes.
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Old 06-29-2016, 03:10 AM   #61
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Am gonna give this a try since it's the same price as the RBF660 at my local fluids shop. The brake pedal is spongy after 2 track days on the RBF660.
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Old 06-29-2016, 09:25 PM   #62
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Quote:
Originally Posted by Donbrz View Post
After reading thread, two questions for CSG

A) with frequent and rigorous tracking, does the data suggest that RT700 require less frequent brake bleeding than RBF660 to maintain comparable performance ?

And

B) with RBF660 at approx $28/500 ml and RT700 at $34/500 ml, and less frequent brake bleeding; does RT700 result in lower cost per track day ?
What @juliog stated. We've tested this fluid on a heavier car with smaller brakes, and more power as well to validate the experience. From that testing, we got some glorious glowing rotor pictures.

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Yes & Yes.
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Old 07-15-2016, 11:41 AM   #63
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I'm currently using Motul RBF 600 but am thinking about switching. How many bottles of this would be needed for a complete flush?
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Old 07-15-2016, 03:48 PM   #64
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I'm currently using Motul RBF 600 but am thinking about switching. How many bottles of this would be needed for a complete flush?
2 for a flush, 1 for subsequent bleeds if you're careful.
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Old 07-22-2016, 09:40 AM   #65
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Has anyone done a comparison between this and Castrol SRF? I'm planning to flush my Motul RBF 600 soon and am kind of torn which way to go next.

On Amazon it looks like the Castrol is actually a bit cheaper per liter. With a wet boiling point of 518F, it seems like the better value.
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Old 07-22-2016, 11:13 AM   #66
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Has anyone done a comparison between this and Castrol SRF? I'm planning to flush my Motul RBF 600 soon and am kind of torn which way to go next.

On Amazon it looks like the Castrol is actually a bit cheaper per liter. With a wet boiling point of 518F, it seems like the better value.
Which SRF? Castrol's made quite a few changes to their naming convention...

The old DOT5 SRF was amazing. The current "SRF" is great if you just want a performance fluid for street driving, but for something seeing a lot of heat where you'll degrade the fluid before it absorbs a lot of water, there are better options.
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Old 07-22-2016, 12:54 PM   #67
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Quote:
Originally Posted by CSG Mike View Post
Which SRF? Castrol's made quite a few changes to their naming convention...

The old DOT5 SRF was amazing. The current "SRF" is great if you just want a performance fluid for street driving, but for something seeing a lot of heat where you'll degrade the fluid before it absorbs a lot of water, there are better options.
Castrol React SRF. It's DOT 4 and comes in a 1 liter bottle. A lot of the Corvette and Porsche guys seem to swear by it.

Last edited by smg1138; 07-22-2016 at 01:17 PM.
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Old 07-22-2016, 07:02 PM   #68
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Castrol React SRF. It's DOT 4 and comes in a 1 liter bottle. A lot of the Corvette and Porsche guys seem to swear by it.
Endless and Torque are both considered superior to Castrol React SRF.
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Old 07-23-2016, 10:09 PM   #69
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Dat wet boiling point tho.
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Old 09-27-2016, 12:01 AM   #70
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Anyone know if this Torque guy died? I'm still waiting on my order from Oct 2015! He does not seem to respond to emails.
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