Alpine951

I want to flush my brakes this weekend for an upcoming Drivers Ed. This is my first De this year and I have yet to flush the fluid since last year. I just realized I only have one unopened can of ATE Super Blue. Is there anything else I can use with similar boiling qualities for my 944 Turbo such as a castrol product. I ask only because no place locally has any ATE. i figured i could get a castrol product locally.

OriginalSterm

yeah, the castrol srf (?) is an alternative. much more expensive though, and i've never seen it anywhere but the internet.

isn't 1 can (liter) of brake fluid more than enough?

Mark in Baltimore

Castrol SRF has a higher wet boiling point. It's pricier but, in the grand scheme of things, well worth the money for its added thermal qualities.

JCP911S

Strangely enough, I have heard that Ford racing fluid is excellent and cheap over the counter product... like $10 a can... from thje dealer. Never tried it (becasue it sounded too wierd), but who knows?

Alpine951

I just called a local race shop that is owned by one of the nascar drivers (Ken Schraeder). they have Wildwood and red Devil and some others. I guess I will drive over and check them out.

TT Gasman

I heard it's just plain old FoMoCo heavy duty brake fluid and it works well. However I haven't seen the boiling point numbers to compare.

TMH

Using a Motive brake bleeder, we just flushed the whole system on a Boxster S, and it used about half a liter. I agree with what was said above: Your 1 liter can should be enough.

Tom

Driver8

I run Castrol GT LMA (Low Moisture Activity) fluid. It has a dry boiling point of 446F and a wet biling point of 311F. I have run this fluid for years at the track (bleeding before each event) and have never had any boiling issues.

SundayDriver

That is the Ford Heavy Duty Truck fluid. It has virtually identical properties to AP550. Not great wet boiling point, but if you are bleeding and flushing routinely, as with a race car, then wet doesn't much matter. I think it is DOT 3 fluid because of the wet specs. I have used that in most of my race cars. Unless you are really stressing brakes, it is fine. Dirt cheap too.

944Ecology

Yes, the Fomoco heavy duty. The cheap racer's secret! Designed for little ol' ladies riding the brakes of their lincoln continental town car all the way down Interstate 77 and still have brakes left at the end of the hill.... Dirt cheap, last time I paid $4 per pint.

(Can you guess why I know all of this? I'm cheap!)

gb

Noel

Motul 600 has a boiling point of ~590 if you are havig fluid fade.

Geo

I have a lot of friends who absolutely swear by the Motul.

You can often find it in well stocked motorcycle shops.

Adam Richman

This is what we race with, excellent product. I would think both Ford Motorcraft HD-whatever and ATE Super Blue are more than adequate for DEs. I have used all three (and liked all three - didn't feel the Ford HD was enough for one track we went to that was very brake intensive but for schools it was more than adequate) - I think the Motul is a bit more than you need for drivers ed.

A930Rocket

FoMoCo Heavy Duty brake fluid for me for years w/o a problem. $3 something per can. Bleed before every event.

Ona side note, they have brake fluid for the Focus that has even higher values, but it says for the Focus only. The guys behind the counter have no info on it and I've seen none so I've not used it. But it sounds interesting...

Noel

You obviously have never driven a 911SC on the track with stock brakes (Track Pads and cooling though). The stock brakes are inadequate for that job. At least when you have been doing DEs for a while.

In reality, the type of fluid you require is based on how close to the boiling point of that fluid your caliper temperatures get at the end of the session. After bleeding my brakes at the track many times with ATE Blue/Gold, the extra spread in temperature is often worth the extra money IMO if it gives you the margin you need to prevent boiling fluid and the related bleeding sessions.