Ridex Plus 1602F0011P G11 coolant concentrate, blue colour, 5-litre canister. CONCENTRATED formulation — must be diluted with deionised water before use (50/50 dilution provides -38°C freeze protection). Universal multi-vehicle compatibility — meets over 20 international specifications including BS 6580, ASTM D 3306, VAG TL 774 C, MAN 324 Typ NF, AUDI/SEAT/VW G 001 100, AUDI/SEAT/VW G 001 1V8, Chrysler MS-7170, Ford ESD-M97B49-A, and Iveco 18-1830. Premium "Plus" tier formulation — engineered to meet enhanced corrosion protection standards above standard Ridex coolant. The 5L canister is the workshop-economical option for full coolant flushes — properly diluted, it produces 10 litres of finished coolant. Ridex Plus is AUTODOC's premium-tier in-house brand, positioned between standard Ridex and OE-supplier brands.