Carquest Brake Fluid DOT 3 Brake Fluid: Synthetic Formulation, For ABS, Disc, And Drum Brake Systems, 32 oz. Bottle

It's good to understand how brake fluid works. I've done some research and found that no liquids are really compressable. Brake Fluids are designed to meet specific standards that keep them working in cars where other liquids might not. Oils damage rubber seals & hoses, therefore, brake fluids are not petroleum-based. Most brake fluids used today are glycolether based, but mineral oil and silicone (DOT 5)based fluids are also available. Synthetic brake fluid typically refers to brake fluid made out of some silicone substance. While most brake fluids are mineral-based, the arguement can be made that all BF are synthetic, but synthetic brake fluid simply means that it is silicone based. DOT-3 has a common dry boiling point of 405F (meaning before fluid has absorbed a certain amount of moisture). The wet boiling point is about 284 degrees ferenheight. Automotive professionals agree that brake fluids should be flushed & changed every 1-2 years. All brake fluids must meet Federal Standards concerning viscosity, corrosion, and compressibility. The fact of the matter is, that in terms of performance, it makes no difference whether you use synthetic brake fluid, or not. The important difference is the type of fluid you use, ie; DOT3, DOT4, and DOT5. The first two can absorbe water (which is generally a bad thing), while the latter does not. Hope this helps. Alex.

Brake fluid is just fine for DOT 3 fluid. Wish it had a little bit higher boiling point for the price it's marked at. No real complaints though, it does the job used for a brake flush.