[STiMaine]

I finally have a chance to post some things after my recent 3-day track experience. Here is an observation that I made the hard way:

Boiling point is NOT the only thing that matters when choosing a brake fluid for the track.

My club requires new fluid within 90 days prior to the event. I put in ATE Super Blue in June for my July event. I had plenty of ATE left (1 unopened liter) to change the fluid before my event last weekend. At the last minute, I decided it would be a lot easier to flush the system with a clear fluid so that I would see a "color change" in my bleeding tube. I didn't think the old ATE was in bad enough shape to look any different. Without time to order ATE amber (same fluid without the dye) I went to NAPA and bought their premium heavy duty fluid with a dry boiling point of about 400 degrees, plenty for a cold fall event.

Well, let me just say that as soon as I drove the car after the flush, I cold tell the difference. I can't say how it would compare to the factory fluid, but after being accustomed to ATE, the pedal felt awful. The fluid seems more compressible and spongy. (and I am confident that my flush was good . . . no air) On the track, the pedal was mush. I could get all the braking I needed, and the fluid did not boil, but modulation was much less accurate.

Just an FYI for everyone. You'll have much more fun with ATE or better fluid even on days when you don't need all the heat protection they offer. The hydraulic qualities are clearly better as well.

Just my 0.02.

[kwlsti]

i use Motul RBF600 love it! very hight boiling point dry and wet

[cnstman]

Brake Fluid wet/dry boiling point chart.

[dahveed]

I run the AP racing 500-series stuff, and I have driven my car very hard, braked a ton, and I couldn't get them to boil-over.

One of the shops that I go to said they say a memo from Brembo regarding them not recommending the use of Motul RB600 fluid, so that's why I didn't use it.

The Ate Type 200 (amber) is good stuff, I would highly recommend that anyone thinking of using the superblue just only uses this stuff, it has the same good specs as the superblue, with none of that nasty blue dye, which takes several flushes before it goes away.