Add To Basket
|Specification||FMVSS 116 DOT 3|
|Specification||FMVSS 116 DOT 4|
|Specification||JASO JIS K2233|
|for components see parts list|
Castrol React SRF Racing brake fluid is a high performance brake fluid of special value in competitive motor sport where extreme braking conditions are encountered. It is an exclusive Castrol product registered under patents in many countries. Castrol React SRF Racing exceeds US Federal Standards FMVSS 116 DOT 3 and DOT 4, ISO 4925, JIS K2233 and current SAE J 1703 specifications.
Castrol React SRF has been especially formulated to maximise braking performance under arduous competitive conditions. In order to achieve the optimum benefits in such applications, advanced materials have been employed in a unique and patented Castrol formulation. The use of Castrol React SRF should be restricted to not more than eighteen months before draining and refilling for maximum efficiency. Prolonged use in excess of the recommended period may give rise to a deterioration in performance at very low temperatures. Castrol SRF is suitable for all disc and drum brake systems with the exception of those for which mineral oil is prescribed.
The exceptionally high dry boiling point, (higher than 300oC) makes Castrol React SRF ideal for use under arduous braking conditions such as racing or rallying.
Castrol React SRF has a very high vapour lock point (the more important measure of high temperature performance under actual braking conditions), and has the additional advantage of sustaining high vapour lock point characteristics during its service life. The compressibility of Castrol React SRF is very similar to that of current DOT 3 and DOT 4 fluids. It can, therefore, be filled into any non-mineral oil braking system. Castrol React SRF is miscible with all conventional fluids meeting US Federal Standards FMVSS 116 DOT 3 and DOT 4, ISO 4925 and current J 1703. However, mixing Castrol SRF and conventional brake fluids will merely reduce the higher quality of Castrol SRF. It is, therefore, recommended that conventional brake fluids be drained from the system before flushing and refilling with Castrol React SRF.
SHIPPING IS FREE* for orders of £75 and over
, regardless of the weight of your order.
We've tried to keep all other shipping costs as low as we can.
Carriage starts at just £0.95 (inc VAT) for small items, with our most common courier rate set at £5.99 for orders of 5kg (enough for 5 litres of oil).
We give an estimate of delivery dates as you shop and in your basket. The vast majority of items are held in stock and dispatched from our UK warehouse and we'll do all we can to get your order to you as quickly as possible.
"It does not get better... the reason this oil is used by Formula 1!"
Free Shipping Over £75!
UK mainland, standard shipping*
No Leak Guarantee
We replace any shipping damages
We never like to be beaten on price