The Phoenix Systems BrakeShot brake fluid additive is designed to fight corrosion induced by the harmful effects of copper. BrakeShot prevents sticking calipers, ailing master cylinders and other ABS braking troubles brought about by corrosion and high copper levels, in the brake system. A 1-oz shot of BrakeShot treats up to 1L of brake fluid, which is the average capacity of a vehicle’s braking system. Cheaper and quicker than a brake flush, BrakeShot is universal and works on all foreign and domestic vehicles. BrakeShot comes packaged in a case of 12.