StopTech® Racing STR 600 & 660 High Performance Brake Fluid

[HP Autosport]

Like all StopTech products, StopTech High Performance Brake Fluid is carefully designed to give drivers an edge in the punishing world of high performance motoring. For over a decade StopTech has engineered and delivered race- and championship-winning brake components and systems for high performance street driving as well as pure racing. StopTech High Performance Brake Fluid adds a new dimension to the company’s offerings.

Available in STR-600 and STR-660 formulations for high performance street and racing applications respectively, the new StopTech High Performance Brake Fluid is a DOT 4 motor vehicle brake fluid, engineered to optimize brake system performance at high operating temperatures. In addition to guarding against boiling and subsequent loss of efficiency at severe racing temperatures, StopTech Brake Fluid maintains its excellent viscosity, lubricity and non-compressibility.

StopTech Racing Brake Fluid stands out not just for its exceptional performance, but also for its stylish and functional packaging. StopTech Brake Fluid comes bottled in a special metal container that is not only more durable, but also gives the fluid up to 25 percent longer shelf life than typical plastic bottles provide. Both in looks and in performance, StopTech Brake Fluid stands out from the crowd.

StopTech® High Performance Brake Fluid conforms to and exceeds the current specification of U.S. FMVSS 116 (§ 571.116) DOT 4, is road legal, and compatible with modern ABS and other vehicle dynamic control systems. StopTech brake fluid is mixable with all DOT 3 and 4 products.

StopTech STR-600 High Performance Street Brake Fluid
Typical Dry Boiling Point: 594°F (312°C)
Typical Wet Boiling Point: 404°F (206°C)
Minimum Wet Boiling Point: 383°F (195°C)
Metal container gives fluid a 25% longer shelf life
Part Number: 501.00001

StopTech STR-660 Ultra Performance Race Brake Fluid
Typical Dry Boiling Point: 622°F (328°C)
Typical Wet Boiling Point: 404°F (206°C)
Minimum Wet Boiling Point: 383°F (195°C)
Metal container gives fluid a 25% longer shelf life
Part Number: 501.00002

[HP Man]

Looks nice but the wet boiling point is a bit disappointing. I'll stick with SRF.

[paradocs98]

Originally Posted by HP Man

Looks nice but the wet boiling point is a bit disappointing. I'll stick with SRF.

Just looked up the dry and wet boiling points for Castrol SRF and Motul RBF600. The Motul is similar to the new StopTech fluid above at around 420 degF wet, while the Castrol SRF has a 520 degF wet boiling point! Yowza!

[JAJ]

Basically, racing brake fluid comes in two types: "SRF" and "other".

[aus]

Originally Posted by JAJ

Basically, racing brake fluid comes in two types: "SRF" and "other".

This stuff looks like rebadged Motul.

.

[persian54]

Originally Posted by aus

This stuff looks like rebadged Motul.

.

except Motul has a wet 421 degree..

but SRF is double the price of Motul...

Curious what the ST runs for and if the SRF really is worth the premium

[JAJ]

I used to change my SRF once a year, so it was cheaper than "other" fluids that had to be refreshed more often. It depends on how likely you are to cook it, though. I'm intentionally easy on my brakes.

[aus]

Isn't SRF a 1L bottle too?
Then add in once a year change out.

[HP Man]

Originally Posted by aus

Isn't SRF a 1L bottle too?
Then add in once a year change out.

Yes -- 1 litre bottle, which is sufficient to flush and bleed a couple times.