brake fluid

ted schurman

New member
Jun 25, 1998
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Arch, the softness in the pedal for Silicone DOT 5 after hot braking is
probably the air coming out of the fluid. When I get back from a trip
in a couple of weeks I will boil up a batch of DOT 5 and see what
happens.

Ted Schurman
73 Glacier VA

>
>
> SILICONE BASED DOT 5 FLUID
>

> However, for racing, use only a glycol-based racing brake fluid. Silicone
> fluid has been tried in racing, but it has a tendancy to give a spongy pedal
> after exposure to high temperatures. This is due to the slight compressibility
> of silicone brake fluid at high temperature. For ordinary street driving, this
> is not critical, but a racer needs all the brake-system stiffness he can get.
>
 
Arch, guess I'm not familiar enough with the Power-Master system. Could
you explain the reason.
Thanks
Ted Schurman
73 Glacier VA

>

> to foam. I did not see this any where but I will draw a conclusion
> from that if you are running a Power Master system that you too
> should stay away from silicone brake fluid. Thats what I found out.
>
 
Arch, Let me say again that I am not very knowledgeable about the power
master system. I knew that it had an electric motor to develop
hydraulic pressure but I assumed that this was a separate system to act
as a booster much like the vacuum booster does. As I understand your
explanation the pump actually pumps up the brake fluid and meters it to
the brakes. Is this correct ?

Ted Schurman
73 Glacier VA

>
> Ted
>
> The Power-Master system is a 12v pump that pumps pressure instead
> of the master cylinder doing it. Very high pressure----be sure to put
> on new lines if you are going to do this.
>
> Take Care
> Arch
>
> In a message dated 2/7/99 7:28:25 PM Central Standard Time, tedsch

>
> > Arch, guess I'm not familiar enough with the Power-Master system. Could
> > you explain the reason.
> > Thanks
> > Ted Schurman
> > 73 Glacier VA
> >
 
> ....I was in Auto Zone today.
> They have a new brake fluid Valveoline...synthetic brake fluid.
> Arch 76 GB IL

Also available in WalMart. 2 quarts/$5.00. Bought it, but haven't used
it yet.
Timothy
 
>

>
> They have a new brake fluid Valveoline (OK I cant spell and my spell
> checker does not know) synthetic brake fluid. Dry boil point 513 F
> wet 335 F. Says it is compatible with DOT 3 and 4. Anybody know
> anything about this stuff?
>
> Arch is this a DOT 3 or DOT 4 fluid? I am using Performance Friction 550 deg
> dry boil point, DOT 3. This is the same fluid as the Ford 550 Dot 3. I
> wonder if the word "synthetic" is being overused by Valvoline?

I think Arch is the victim of marketing - I saw this stuff also and
made the same mistake the first time. It's Valvoline "Syntec" brake
fluid. I don't think it's really a "synthetic". "Syntec" is a
marketing gimmick for a line of Valvoline products. FWIW, I'm planning
to use this to bleed out my disk brake conversion the first time. It's
half the price of the Ford fluid. I'll probably run it a year and then
change to the Ford HP fluid. The wet BP is not a concern as I plan to
bleed my brakes annually. Cheap insurance IMO.

Patrick
- --
Patrick Flowers
Mailto:patri63

The GMC Motorhome Page
http://www.gmcmotorhome.com
 
>
> I have been known to be taken in more than once. NOT this time. BTW
> Syntec is Castrol's market gimmick. Went back to AZ today since I
> had a little more time. Valvoline's market gimmick is SynPower.

Aargh! You're right! Syntec is Castrol - SynPower is Valvoline.

> The bottle says Synthetic brake fluid. Dry boil point 513 F and wet boil
> point 333. I am not pushing this stuff just reporting my findings.
> The price was $4.99 per quart.

Several months back I found a web page Valvoline has for its "SynPower"
products, but not much info IIRC. It wasn't too hard to find at
www.valvoline.com.

Patrick
- --
Patrick Flowers
Mailto:patri63

The GMC Motorhome Page
http://www.gmcmotorhome.com