What Brake Fluid Are You Using?

[scotyp]

Porsche newbie here. 911 owner since December.
I'm completing a few maintenance chores this Winter and among them is a brake fluid flush/change. My 82' SC brake fluid reservoir has clear fluid in it(age unknown) and wondered what others were running in theirs.
I have used Castrol GTLMA in my British cars with success as it exceeds DOT 4 specs and is easy on the brake lines.
As I just got my Motive Power Bleeder in the mail and was ready to buy a quart ,just checking with the forum first.

Cheers,

Scot

[rayporsche]

ATE / Super Blue Racing......................................

[gtc]

ATE super blue/gold as sold by our host.

[RWebb]

GT LMA??

I use Ate alternating amber & blue

there are many threads if you run a search but any new fluid, meeting P AG's spec. will be ok for the street - pay attention to wet boiling pt. #'s -- also dry b.p. if you want a slightly better approximation of the performance vs. water content curve

IIRC, Ford HD is decent and readily available

if you track it and have heat issues with the above, there are various options for fluid, technique, air flow, etc.

how old are your rubber brake hoses??

[scotyp]

Thanks, GTLMA...

My hoses look pretty old. The records (since new)don't say when they were replaced as the car only has 60 K on it .

Scot

[Flieger]

I have GTLMA right now but am switching to ATE Blue, just got the can today.

[RWebb]

replacing the hoses is a critical safety issue - now is the time to do it, while you have the fluid being flushed out

[Jeff Alton]

Motul RBF600 in all our cars and every one we track prep.....

[Kidasters]

I alternate back and forth between ATE blue and ATE gold.

Makes bleeding really easy.

And +1 on the pressure bleeder.

Ken

[GrantG]

I just loaded up some Endless RF-650 (as used in Formula 1), but I haven't tried it yet (having work done on one of the calipers).

http://www.the370z.com/brakes-suspension/11523-endless-rf-650-brake-fluid-explained.html

Endless USA: Advanced Racing Brake Technology » RF-650

[JP911]

Originally Posted by Jeff Alton

Motul RBF600 in all our cars and every one we track prep.....

Ditto. The bonus, IMO, is that it comes in smaller containers. Perfect size for a full system flush on a 911.

[efhughes3]

Another vote for Motul RBF600-use it and you'll not go back to ATE. Not too expensive either.

[efhughes3]

I like SpeedBleeders for bleeding. My Motive bleeder hasn't been out of the box in 3 years. Just my opinion, but got tired of the cleanup.

[GrantG]

Originally Posted by efhughes3

I like SpeedBleeders for bleeding. My Motive bleeder hasn't been out of the box in 3 years. Just my opinion, but got tired of the cleanup.

No cleanup necessary of you don't fill the bleeder with fluid. Just fill the reservoir and use the bleeder to push it through the system. Just need to stop occasionally and refill the reservoir, as to avoid running air through the system.

[efhughes3]

All the more reason to use the SpeedBleeders if you're going to top off the reservoir anyway.

[rusnak]

I bleed them with cheap stuff because I'm a cheap bastich, then once the air is out, I flush with the good stuff. I'd only admit to doing this among friends...

[Matt Monson]

Ate...

[Mahler9th]

I mostly use Castrol LMA on street cars and have used various products on track cars. My current race car uses ATE Blue. It is very light at about 1950 wet, (with about 350-375 bhp), and given its configuration and the tracks I drive, I don't have any problems with heat. I don't really even need ducting. I only bleed once per season.

For a full-weight street Porsche car sometimes driven on the track, I'd probably use ATE to start with if folks in my area with similar cars had success with it. In my experience, it is most helpful to use what others in my area have found successful... with similar cars and driving at similar tracks.

I own and like the Motive tool, but don't always use it. I am acquainted with the owner of Motive, and he is a car guy that wants to provide helpful products to other car guys.

[450knotOffice]

Another vote for Motul RBF 600. It's the only fluid I've used that didn't boil at the track. I'll never use anything else in that car. In my street-only cars I'll use ATE blue and gold.

[easelboy1]

+Another one: Motul RBF 600. Love my Motive as well