<< Back to Perfomance Basics..

AP Fluids | Brake Bleeding | Lines

Rule # 1 - NEVER use a synthetic based brake fluid. For competition we only use Glycol based fluids such as:

• AP Super 600 (we race with this!)
• AP PRF
• Castrol SRF
• Brembo LCF

In a nut shell :

Synthetic based fluid DO NOT absorb water (moistur ). This is the problem with all brake hydraulic systems a remote resevoir is used. The fill cap allows for venting of the fluid, which will draw air from the atmosphere ( which of course contains water - and in a humid climate even more water ) to allow the fluid to be pressurized through the system.

Because the sythetic base will not absorb moisture, moisture will collect within the system as the brakes are used.The moisture will collect at the lowest point of the hydraulic system (the calipers).

Now that moisture has accumulated behind the piston - The so-called temp rating of 570° is now down to 212°. This moisture shall then boil within the brake fluid (this is call airiation) causing a spongy pedal feel and longer stroke. The wierd thing is once the fluid cools down the fluid shall recover (the pedal becomes firmer and stroke is reduced).

The only time a synthetic brake fluid should be used is when paint is more important that brakes (show cars - old Corvettes - Harley's)

There is no performance or racing brake fluid I am aware of that would be acceptable to use with a synthetic base.

The only warning about these Glycol based fluids are :

- KEEP AWAY FROM MAGNESIUM

Magnesium is not used for brakes, but they are used for clutches which can be hydraulic activated.

AP Racing Brake Fluid

AP Racing Brake Fluid was developed specifically for serious racers. AP brake fluids provide and maintain a higher resistance to chemical breakdown, higher dry boiling point, and improved pedal feel. In the heat of competition, don't risk fluid failure with a lesser quality fluid.

More AP Racing Fluid Information >>

All AP Racing Brake Fluids are Polyalkalene Glycol Ether based and are not a silicone based fluid. AP Racing do not sell and do not recommend using a silicone based brake fluid with any of its products. More Information

Colour variations may occour in AP 600 brake fluid due to its manufacturing process.

This has no effect on the quality and performance of this product.

AP 550
• Designed for high temperature applications
• Resists chemical breakdown
• Low viscosity reduces chances of aeration

AP 600
• Formulated for severe to extreme brake temperatures
• Extremely low viscosity
• Superior resistance to chemical breakdown
• Lubricates and cleans brake system internally

Brembo LCF High Temperature Brake Fluid

Glycol based to avoid absorbing water into the system creating aeration during heavy use. LCF 600+ is an ideal choice for racing or performance use - combining ultra-high dry boiling point, low compressibility, and consistent pedal feel.

Call Bishop toll free 866-867-8324 North American Wide!

Any questions about kits, parts, installations or services are welcome. Contact Bishop by phone at  866-867-8324 or e-mail bishop@bishopsales.com and we will respond promptly. If you're in the neighborhood, then drop by the shop at 1130 West 15th Street North Vancouver BC and we will gladly give you a tour of our facilities, but beware – there may be a Monster and ferocious horsepower beasts in our shop when you visit! We really love to share the fun with other performance enthusiasts who want to take their cars to the next level of performance, appearance and handling!

Contact | About | Store | Back | Page Top | Lines | Links