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.
Castrol Brake Fluid DOT 4 is a synthetic brake fluid comprising of glycols and borate esters to achieve a higher boiling point and wet boiling point.
Castrol Brake Fluid DOT 4 is fully compatible with other fluids meeting FMVSS116 DOT 3 and DOT 4 however, in order to maintain the superior performance characteristics of Castrol Brake Fluid DOT 4, avoid mixing with other brake fluids products.
**All conventional brake fluids deteriorate during use. It is strongly recommended thatCastrol Brake Fluid DOT 4 should be changed according to the vehicle manufacturer’s advice. In the absence of such advice, a 2 year change period is recommended.
This product has been formulated from mixed polyalkylene glycol ethers and borateesters together with high performance additives and inhibitors which give ultimatesystem protection:
Castrol Brake Fluid DOT 3 is designed for use in the hydraulic brake and clutch systems of passenger cars and commercial vehicles with theexception of those systems for which a mineral oil based fluid is recommended (for example, some Citröen systems, for which CastrolResponse LHM+ is suitable and Rolls Royce systems, for which Castrol HSMO Plus is approved).