Castrol SRF Brake Fluid's unique silicon ester technology absorbs less water than conventional glycol ether fluids and prevents the fluid's high temperature performance from deteriorating. Its wet boiling point of 270°C is vastly superior to the minimum requirement of 155°C demanded by the current US DOT 4 specification. Its ability to withstand temperatures in excess of 300°C and superior resistance to the effects of absorbed water have established Castrol SRF Brake Fluid as the world's premier fluid for the hydraulic brakes used in all forms of motorsport and racing. We recommend Castrol SRF to everyone attending a track day. The most common track-day problem enthusiasts face is boiled brake fluid. There is no better option. Available in 1 liter size

For one company to be involved in so many pioneering exploits over such a long period of time is worth shouting about.

Castrol's founder Charles Wakefield was always keen to show how Castrol products would perform when pushed to extremes and it's an ethos which still rings true today.

There aren't many lubricant manufacturers which can boast to having helped Barnes Wallace fly to Canada from the UK in an airship in the 1920s and before becoming a record breaker on water with Sir Donald Campbell some 30 years later.

It's also fitting that Castrol helped Jack Booth set a motorcycle land speed record in 1911 and that the same red, white and green colours are competing for honours in the current MotoGP championship with Honda.

It's more than just oil. It's liquid engineering.