Heritage SAE 50, non detergent systems for cars up to 8 cylinder made pre 1920. Also for motorcycles over 500cc prior to 1920 with primitive oiling systems & early agricultural equipment.
A high zinc, SAE 20W-50 viscosity, API GL-4 product, designed soecifically for all classic Minis (from 1959-2000) providing an excellent combination of engine protection and smooth gear shifts.