Brake Fluid dot 4

Castrol Brake Fluid DOT 4 is a high boiling synthetic brake fluid which far exceeds the requirements of the SAE J1703, SAE J1704, FMVSS 116 DOT 4, ISO 4925 and JIS K2233 specifications.
Castrol Brake Fluid DOT 4 is designed for use in brake systems particularly those which are exposed to extreme conditions.