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Castrol - Racing Brake Fluid, SRF
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CST-SRF-1L |
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$79.95
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Chassis Type: Universal
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VAC Motorsports can tell you, Castrol SRF Racing brake fluid is
the benchmark performer!
It's wet and dry boiling point exceed the competition and surpass
everything else avalible for the serious race and track car. We use
SRF in all of our seriously tracked and raced vehicles.
The only choice when coming in first is the goal.
Castrol SRF Specifications:
- Rating - DOT 4
- Dry Boiling Point - 590 °F
- Wet Boiling Point - 518 °F
- Fully compatible with ABS braking systems.
- Safe for all non-mineral oil-based disc and drum brake
systems
- Now in (1 liter) plastic bottles.
*VAC Tech Tips:
SRF can also be used on a street vehicle.
SRF Can be mixed with DOT3 and 4 HOWEVER, NEVER do this on a race
vehicle, this is only for the emergency situation of a street
vehicle that needs to be topped off.
SRF is to be flushed and refiled at least every 18 months.
Info from Castrol:
Castrol SRF Racing Brake Fluid is an ultra high performance product
formulated specifically to satisfy the ever increasing stresses
placed upon the braking systems used in international motorsport.
The exceptional performance of Castrol SRF is due to a novel
silicon ester technology pioneered by Castrol and unique to the
extent that it has been granted patent-protection in numerous
countries throughout the world.
Castrol SRF evolved as a direct result of Castrol's ongoing
Research and Development program for brake fluids which identified
this silicon ester technology as providing considerable performance
benefits when compared with conventional glycol ether borate ester
fluids.
Following exhaustive laboratory tests at Castrol's International
Technology Centre in the UK, the final formulation for Castrol SRF
was subjected to an extensive road-test programme on the Gross
Glockner and Stelvio passes high in the Austrian and Italian Alps.
It then underwent an independent track test program conducted by a
famous Formula One racing team. Their assessment was that "Castrol
SRF is the best racing brake fluid we have ever used."
Subsequently, Castrol SRF was offered to top flight racing and
rally teams throughout the world including most of the Formula One
teams, the all-conquering Jaguar and Mercedes -Benz sports car
teams and the Audi, Nissan and Toyota rally teams. Enthusiastic
recommendation by these experts soon created an immense interest in
Castrol SRF throughout the whole spectrum of national and
international motorsport. Today, Castrol SRF is regarded by the
international motorsport community as being without equal and it is
chosen not only by factory-supported teams but by private
competitors throughout the world.
All conventional brake fluids used in cars and motor cycles are
hygroscopic, that is, they absorb water from their surroundings.
Strange though it may seem, the flexible hoses incorporated in
braking systems are permeable to water and in time enough, water
can find its way into the system via the hoses, and seriously
affect the brake fluid's performance. This water reduces the
boiling point of the fluid (ie, it lowers the temperature at which
gas bubbles begin to form). When these bubbles form, they turn a
virtually incompressible liquid into a mixture of gas and liquid
which can be compressed quite considerably, thus severely reducing
the efficiency of the brakes. In this situation, a driver finds
that the brakes feel spongy. Brake-pedal travel will increase and
it may be necessary to 'pump' the pedal to get the brakes to
function effectively. However, when the brake fluid reaches a
temperature at which the water in the fluid causes gas to be
produced, which is equal to the volume swept by the piston in the
rake master-cylinder, vapor-lock occurs and the brakes become
inoperative. When this happens, the first indication the driver has
that something is wrong is when he applies the brakes. The pedal
goes down to the floor and the car carries on at undiminished - and
possibly fatal speed.
The silicon ester technology in Castrol SRF addresses this problem
in two ways. Firstly, Castrol SRF is less hygroscopic than
conventional brake fluids - it absorbs less water in a given time.
Secondly, unlike conventional glycol ether fluids, Castrol SRF
reacts chemically with the absorbed water to reduce its adverse
effects, thus preventing the fluid's high temperature performance
and safety margins from deteriorating as rapidly as they would
otherwise do.
Castrol SRF exceeds the US Federal Standards FMVSS 116 DOT 3 and
DOT 4, ISO 4925, JIS K2233 and current SAE J1703 and is miscible
with all conventional brake fluids conforming to these standards.
However, mixing Castrol SRF and conventional brake fluids will
reduce the benefits of Castrol SRF. It is strongly recommended that
conventional brake fluid be drained from the system before flushing
and refilling with Castrol SRF.
The wet boiling point of Castrol SRF, 270 C, is vastly superior to
the minimum requirement of 155 C demanded by the current US DOT 4
specification. The product's typical dry boiling point of 310 C is
likewise outstanding. This ability to withstand temperatures in
excess of 300 C, and its superior resistance to the effects of
absorbed water, have established Castrol SRF as the world's premier
fluid for the hydraulic brakes used in all forms of motorsport.
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