Castrol SRF Racing Brake Fluid is a high performance brake fluid of special value in competitive motorsport where extreme braking conditions are encountered. It has been especially formulated to maximise braking performance under arduous competitive conditions. In order to achieve the optimum benefits in such applications, patented silicon ester materials have been emplyed in a unique Castrol formulation. As a result of its unique properties and to maintain excellent vapour lock and corrosion protection, we strongly recommend that Castrol SRF be drained and refilled every eighteen months.
Application: Castrol SRF is suitable for all disc and drum brake systems used in motorsport with the exception of those for which a mineral oil is prescribed. It complies with the requirements of the following specifications:
- US FMVSS 116 DOT 3 and DOT 4
- SAE J1703
- ISO 4925
- Australian Standard 1960 Grade 3
Features & Benefits:
- Race Proven: Widely used in racing, from Formula One World sports cars to Group A and 500cc Grand Prix motorcycles;
- High Boiling Point: The exceptionally high dry boiling point (higher than 300°C) makes Castrol SRF ideal for use under arduous braking conditions such as rallying or racing. Castrol SRF exceeds the boiling point requirements of DOT 5 brake fluids;
- High Vapour Lock Point: Castrol SRF has a very high vapour lock point (the more important measure of high temperatures performance under actual braking conditions) and has the additional advantage of sustaining high vapour lock point characteristics during its service life;
- Compressibility: The compressibility of Castrol SRF is very similar to that of current DOT 3 and DOT 4 fluids. It can therefore be filled into any braking system used in motorsport with the exception of those for which a mineral oil is prescribed;
- Miscibility: Castrol SRF is miscible with all conventional fluids meeting the US Federal Standards FMVSS 116 DOT 3 and DOT 4, ISO 4925 and current SAE J1703. The miscibility of Castrol SRF with conventional brake fluids means changing the brake system to Castrol SRF is easy. Drain and flush out the conventional brake fluid with Castrol SRF then top up the system with Castrol SRF. Although Castrol SRF is miscible with conventional brake fluids, topping up Castrol SRF with conventional brake fluids will reduce the benefits of the product;
- Compatibility: Castrol SRF is compatible with seal rubber and metal materials used in braking systems using conventional polyglycol brake fluids;
- Bleeding: Castrol SRF is easy to bleed like conventional brake fluids.
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