Dot 4 Brake fluid is an essential part of your car's brake system. Castrol Dot 4 brake fluid is liquid engineered to prevent vapor lock and protect your brake system.
Castrol brake fluid - or brake oil as it's also known - doesn't just help ensure that your car stops when you need it to. It is specially formulated to protect the entire brake system from corrosion, and to keep performing at every stop sign and every emergency stop.
It is liquid engineering in action, and when you need a brake fluid flush or brake fluid change, we have a brake fluid specially formulated to perform in every vehicle, from supercars to station wagons.
Suitable for use in most North American and foreign vehicles, Castrol DOT 4 brake fluid is liquid engineered to exceed DOT 3 and DOT 4 standards and ensure reliable braking performance every time.
Designed to resist the moisture that can cause vapor lock brake failure, it also has a higher boiling point than conventional brake fluids and protects against chloride corrosion of the braking system.
Exceeds SAE 1703, SAE 1704, ISO 4925, JIS K2233, and FMVSS No. 116, DOT 3 and DOT