Our brake fluid of choice – Castrol SRF gets up to temp and stays there, perfect for all cars that are exercised properly. Castrol SRF is sold individually in 1L bottles.

Technical specs:

-Exceptionally high dry boiling point of 590ºF (Wet 518ºF)

-Superior anti-vapor lock properties

-Safe for all non-mineral oil-based disc and drum brake systems

-Exceeds SAE 1703, ISO 4925, JIS K2233, FMVSS116, DOT3 & DOT 4

**For reference, one bottle is enough for a fluid flush in most Porsche 911s.