Dane@LGmotorsports

We recommend Motul or Endless. If the secondary radiator doesn't resolve we have a twin intercooler set up that fixes the overheating.

okaythen

ATE TYP 200 is pretty cheap, sounds like it's decent too. It will be my 2nd time at the HPDE so should be plenty for me? Won't be too hard on the brake etc, still got a lot of driver mod to do.

Heard some cases of people boiling it? but rare I guess? depends on how you drive. For the price you can't beat that tho!

rb185afm

village idiot

I used to use RBF600 and bleed every track day. Now I use SRF and flush through a bottle (almost an entire flush) every 6 months. It's cheaper, takes less time and, honestly, I probably have more fade resistant fluid.

Kracka

Yup, meets GM's recommendation for track use (high-performance DOT4 with a dry boiling point >534F) and is a great choice for street use.

okaythen

Perfect, will use it on the focus st too.

village idiot

Seems like a crappy place to save $5.

Checkmate1

I use Wilwood EXP 600 on track. Dry (626') /. Wet (417'). Also, much cheaper compared to SRF.

copjsd

Although the Motul 600 (and even their more expensive, shorter service life Motul 660) are exceptionally good brake fluids, they are actually second and third in performance behind Castrol SRF. If you compare product spec sheets (links provided below), you'll see that Castrol SRF has a higher dry and wet boiling point. And what is more exciting, is that is rated to stay far above the necessary point, for up to 18 months. This means one flush at the start of each season and you'll be good for the entire season. I found the best price here:


Links to products' specifications:

Motul 600 (dry 594 F / wet 399 F): https://s3-eu-west-1.amazonaws.com/motul-production2/images/product_descriptions/technical_data_sheets/2635/RBF_600_Factory_Line__28GB_29.pdf?149201 6152

Motul 660 (dry 622 F / wet 399 F): https://s3-eu-west-1.amazonaws.com/motul-production2/images/product_descriptions/technical_data_sheets/2636/RBF_660_Factory_Line__28GB_29__281_29.pd f?1492016152

Castrol SRF (dry 608 F / wet 518 F): http://www.goldfren.cz/_download_news/srf_en.pdf

Some people are highly recommending Prospeed's brake fluid.

I got the numbers from Prospeed RS683's website, see: http://rs683.com/abcs-of-brake-fluid/brake-fluid-chart/ .

For me, the "wet" boiling temperature is most important. A few other "race only” fluids start with a slightly higher "dry” temps (temps beyond our requirements) but degrade quickly and terribly with exposure to moisture. This is okay for race-teams that flush the fluids for every event.

Prospeed's big push is their claim of a very low (1%) dissolved oxygen, which contributes to a firm pedal. They suggest some of their competitors have 5% dissolved oxygen. I'm a little suspect that this is marketing hype, right along with their girls in skimpy clothing, corporate jets, and Lamborghinis. Maybe their 1% is good compared to Kmart's DOT 3, however if their 1% was truly unique in the world of high performance brake fluid, they should disclose this information on their comparison chart as well.

Prospeed RS683: dry 583 F / wet 394 F

Castrol React SRF: dry 608 F / wet 518 F

What concerns me with the Prospeed and the others is their 33% reduction in boiling point after becoming wet, and not knowing when it is wet! On the other hand, Castrol SRF only degrades 15% when wet. Castrol suggests in normal use, it will be dry enough track use for 18 months. So I feel very comfortable with one flush per season because even when wet, it is at 518 F.

In conclusion, for me, I haven’t been able to find a brake fluid, at any price, better than Castrol SRF!

village idiot

I think street driving degrades the SRF a little quicker. I had my pedal soften up a bit after about 6 months of street + track driving. I'll probably put one fresh bottle through every 6 months. It's still cheaper (and safer IMO) than running 660.

mmorse

0Todd TCE

Unless you're in a highly humid area or a lot of rain I don't think I'd worry about it too much. Certainly won't 'hurt' to change or flush it but doing so doesn't increase your braking performance. Some folks read all this stuff and just think they're being left out of all the good stuff and brake fluid is a cheap "improvement" to the car. It's not. It's all temperature related for the most part. Unless you've boiled the fluid you use now there's no need for some fancy big number fluid.

mmorse

okaythen

So the TYP 200 for HPDE, how often should I change the brake fluid? After how many HPDE or after 1,2 years?

Floridamark

Srf

Kracka

With track use, regardless of fluid, bleed it after every track event and flush it after every track season.

village idiot

Depending on the fluid and how often you track it, I'd say flush more often, Maybe every 6 months or 5 track events or something like that.

Or just run SRF and flush every 6 months. That's what I do. It's cheaper than new bottle of fluid every track day for bleeding the brakes and it has a higher temp anyway.

L82Brake

I used ATE200 for years on my C6 and now in my C7 purchased from Tirerack or on Amazon. It was never a problem for me, but I am never the fastest or hardest on my brakes. I track for fun more than lap times. That might be a measure for you.

I just bought my first can of SRF and that will now be my go to fluid.

p.s. - I never had to bleed my brakes only flush.

GoatHead

I chose SRF for street/track use. Because of the high wet boiling point, it doesn't have to be flushed too often. Some folks completely flush it once a year only.

Floridamark