Crash_Z06

So what is everyone using for brake/ clutch fluid?

Six-Gun-Todd

Prestone synthetic Dot 4....seems to work well and is pretty inexpensive.

Random84

+1

Use it for both. Any local dot 4 synthetic is more than enough for both in a street car. Just do NOT get "dot 5".

X25

I think it needs to be Super Dot4 (or so called 4.1) for clutch. The wet numbers are much higher than regular Dot4 for such fluids.

rapidroy

And the best price you are likely to find is at WalMart

K.Shupe

Brake fluid ___ ATE TYPE 200 Brake Fluid
Clutch fluid ___ Prestone synthetic Dot 4

Crash_Z06

Thanks Everyone!

Carnac

Castrol SRF is the best, but expensive ($65/liter)

Motul RBF 600 good and reasonable ($15/500ml) - I've had very good luck with RBF 600 for HPDE and street use.

Motul RBF 660 costs a bit more ($22/500ml)

ATE Super Blue and Amber (you can use the blue to see when you get a complete change when it starts coming out blue at the caliber (then you switch back to amber the next fluid change - used by a lot of track and motorcycle racers) ($22/liter and in a nice metal can) - I might not use the blue for the clutch - hard to tell when it gets dirty

Prestone Super 4 is easy to find at AutoZone or Walmart - good and inexpensive ($4/12oz) - this is absolutely fine for street and light to medium track applications

Any DOT 4 should be good in both the clutch and brakes. I believe the "Super" designation is advertising and not a real specification.

Amazon carries a good selection - just watch any on-line pricing - some pricing is by liter others by 500 ml and shipping can be expensive

DO NOT USE DOT 5 - is is silicone based and will not mix with DOT 3 or 4 and is not recommended even if all the old fluid could be removed.

You can use DOT 5.1 (it is glycol based like the DOT 3 and 4 fluids but is full synthetic. I have never seen it recommended for track or high performance applications.

I use a Motive power bleeder to push new brake fluid through the system before each HDPE (around $55)

Jim

Crash_Z06

Thanks Jim

The motive is on my list of things to pick up.

Forgot about the colored ATE fluid until you brought it up lol it's been a little while

Carnac

Yep - such a simple idea - I found with the ATE blue I needed to run more than I thought to get fresh at the right rear wheel and less than I thought for either of the front wheels.

Some people feel pressurizing the brake system may introduce moisture, but it is so dry here in Las Vegas and it is pressurized for only a few minutes, I see no problem (and have had zero brake fade issues even at Spring Mountain durning 30 minute HPDE sessions).

With the Motive power bleeder - I do NOT put fresh brake fluid into the power bleeder (as indicated in the instructions). I first remove as much fluid as possible from the master cylinder with a syringe (nice one available at WalMart sold for 2 cycle oil mixing - in the automotive/motorcycle section). Then top off the master cylinder with fresh fluid - pressurize to about 12 psi, open the caliper bleeder until the fluid is clean and free of any air, I do the same with the second bleeder on that caliper, and then de-presurize, re-top off the master cylinder and move to the next wheel. Make sure that the master cylinder doesn't go dry (should not be a problem - I find that it goes from full to half full for each wheel).

Very easy and only takes one person.

Jim

VetteVinnie

I am running the Stage I setup from LG Motorsports. Came with Motul fluid, Hawk pads and stainless steel braided brake lines.

Jorday

Prestone dot 4 is what I always used on my cars. It did require frequent changes when the car was being raced often.

Gering

KING_PIN6

i want to bleed the clutch ???

but i dont know how much is requires to fill the system

double06

I think it is a higher boiling point than the regular DOT 4. It has a boiling point like 60 degrees F over the DOT 4. Other manufactures Castrol etc make the SUper DOT 4.

Werks

AP600 for brakes, Prestone Super DOT 4 for clutch.

Mark923

Higher Wet Boiling...Preston DOT 4 shows 311. The GM recommend part number is 338.

Here's a chart with more info
http://www.seinesystems.com/BrakeFluids.htm