Our current favorite track brake fluid?

All of the bits and pieces came in to get the Accord track ready, so now it's time to figure out what brake fluid to use to flush the system and start over with. Any current favorites? I've used ATE in the past but I'm not sure what the current state of thinking is. 

I'm still using Valvoline in the Lemons Civic. It has very good cooling ducts and doesn't weigh much, so it's pretty nice to a set of brakes.

I thought Motul was the answer to track day brakes?

Pete

I'm running Motul RBF600.  It seems to work just fine.

Back in the day it was Motul or Ford Blue. I always used a Valvoline Syntec in my street-classed car. 

We've typically always used Motul RBF600 but recently discovered Redline RL-600 which seems to have pretty much the same specs at a better price so going to try that this coming season.

I actually have an unopened container of Motul but that stuff is so expensive that I'm more reluctant to bleed on a good schedule. I'm dumb, I know. 

The Redline looks good and more affordable. Thanks.

We run Motul RBF660 in our 94 Accord that we run in Chumpcar. Works well. 

I've switched to Castrol SRF Racing Brake Fluid in race cars.

I’ve pretty much switched to ProSpeed RS683. 

Toyman01 said:

I'm still using Valvoline in the Lemons Civic. It has very good cooling ducts and doesn't weigh much, so it's pretty nice to a set of brakes.

Used this in many cars including a Lemons Saturn.  Works well, its cheap, and readily available.  I will continue to use until I run into situation where it doesn't meet the need.

Been using ATE in my track Malibu and Miata and never had any issues.

Its cheap enough I don't mind bleeding the brakes regularly.

mazdeuce - Seth said:

All of the bits and pieces came in to get the Accord track ready

May we collectively pause and reflect on this phrase, and how 99% of us think it is entirely normal?

Okay, back to brake fluid.

At our first lemons race we were using stock(original?) DOT3 brake fluid. After slowing down 3500lbs of steel for 14.5 hours it was done. We've switched to Motul RBF600 and not looked back. It's pricy, but 18$ per weekend split between 4-6 people is worth it for the peace of mind that it's not going to boil.

I like Endless but it makes Motul look cheap.

Fr3AkAzOiD said:

Been using ATE in my track Malibu and Miata and never had any issues.

Its cheap enough I don't mind bleeding the brakes regularly.

ATE works great for me while out on track, but the pedal will go mushy after parking the car in the paddock unless I spend an extra 4-5 minutes driving around the paddock in circles AFTER the normal cooldown lap.  My Miata does make an eensy teensy bit more power than stock, though (340 at the wheels), and there's a lot of extra thermal mass in the brakes. :)  I switched back to Motul and that problem is mostly fixed.

I suspect that for a stock-ish Accord ATE will probably be fine.

Motul RBF 600. Not only is it more expensive, but it is also more hygroscopic than others.  To maintain that 660 or 600 degree boiling point you're going to have to keep it fresh. 

Great for race cars, but for occasional HPDE and street use you might as well go with a normal high-quality fluid.

In other news, brake fluid ranks way up there on my list of horrible automotive fluids to get on your skin.  The high performance stuff seems even worse, but that may just be psychological. 

I like ATE, and switch back and forth between the blue and amber to make sure everything is flushed.

Motul RBF600 is what I've used in the racecar historically. I've heard good things about the Redline fluid mentioned above so I may give that a shot for the first event or two this season.

Srf is the bee's knees apparently but you pay for it. 

I found that wilwood makes a brake fluid that is inexpensive and has better dry and wet numbers than most out there including motul. 

Its what I have been using with no problems on my s13 track car

I saw this link on another forum:  https://www.lelandwest.com/brake-fluid-comparison-chart.cfm  It's a comprehensive list of performance brake fluid specs, costs and links to places to purchase.