Time For New Brake Fluid!

[JET]

Castrol SRF is about $90 a liter, so you must have used a cheaper Castrol. Do a google search for Castrol SRF and Motul 600. You will find some really good spec sheets. The ford stuff is the best of the decent priced stuff.

[AJ]

Mark just put Motul in the 240. He looked all over for it local, and I think he found it, but I am not sure where. I hear alot of good shit about Catrol SRF but damn I didn't know it was that spendy. We also carry it (well have access to it) and yeah, right abotu now it's about 80 per liter.

What about the Russell Fluids?

[520Talon]

I don't know what the Ford Blue Dot is, but I use the Ford High Perfomance Dot 3 and it work extremely well. I pay $4 a pint at my local dealership.

[jd1828]

ill try out the ford stuff. i found some specs on it and its not the greatest stuff. its got a good dry boiling point at 550 but its wet point is 290. which is probably why racers like it so much, for its dry bp temp. so it should be fine as long as i dont boil it. if i do then at least its cheap enough to change it often.

my master cyl could be leaking but like chris said it makes more sense to start with the simple fix first. if new fluid doesnt fix it then ill start looking at the master cylinder.

[JustROLLIN]

Its not brake fluid. You either have a leak in your lines or you have a bad master cylinder. Fluid DOES NOT compress.

[jd1828]

unless it boils and gives off a gas. then it does compress

[1Fst14B]

air bubbles sure do compress thou

ive seen it many times, it seems like alot of cars we buy from down south need to be bled/flushed after being here for a little bit of time...

[Jacek]

the air compresses only so much and is the first thing you feel making it spongy.
if it is air in the line, it would have to be a shit load of it. but if he feels brake pressure then the pressure all the sudden falling, id say master cylinder. especially after slamming on the brakes to stop super fast.

[ABV]

I just put Motul RBF 600 in my car. I found it at a local cycle shop (Midwest Cycle Supply) for, I think, $12 per half liter. Pretty expensive, but I only needed 1 bottle to completely fill and bleed my brake system. This is on a 240 though, so you might need more or less. I can't say what the brake fluid alone did, because when I changed it, I also changed to ss lines, and upgraded brake pads. I can say though, that with those changes, and the fluid, it made a big difference.

If I were you I would try the Ford Blue dot, stuff. I've heard good things about it as well. It has about half the wet boiling point of the Motul, but the dry boiling point is still very good, and it's much cheaper. Plus, if you change the fluid, and find out that it is in fact you master cylinder that's bad, then you wont have to spend as much for new fluid when you replace it.

[JustROLLIN]

Originally posted by Jacek@May 12 2004, 04:02 PM
the air compresses only so much and is the first thing you feel making it spongy.
if it is air in the line, it would have to be a shit load of it. but if he feels brake pressure then the pressure all the sudden falling, id say master cylinder. especially after slamming on the brakes to stop super fast.
Exactly. If it were simply air in the lines, the pedal would have that spongy feeling. You would not have a slow decline of the brake pedal.