AUTOGUARD HEAVY DUTY BRAKE FLUID DOT 3 is a balanced blend of premium grade glycol ethers with oxidation and corrosion inhibitors. AUTOGUARD HEAVY DUTY BRAKE FLUID DOT 3 is formulated for use with disc and drum brakes, and is recommended for all vehicles where a DOT 3 fluid is specified by the vehicle manufacturer. AUTOGUARD HEAVY DUTY BRAKE FLUID DOT 3 meets or exceeds Federal Motor Vehicle Standard 571.116 and SAE J1703. AUTOGUARD HEAVY DUTY BRAKE FLUID DOT 3 is not compatible with any type of oil and does not meet DOT 4 or DOT 5 brake fluid requirements. Always check your owner’s manual for specific application information.