DOT 4 brake fluid with a dry boiling point above 280 C, 1 litre, to resist vapour lock in traffic and hard driving.

Dry boiling point above 280 C to resist vapour lock in traffic jams and hard driving, so the pedal stays firm.
Full specifications are on each data sheet. The DTOX team confirms the right grade for a specific vehicle.
The printed list is on the data sheet or catalogue page linked above.