Among products you might be able to buy in S. Africa, is SUS32 (SAE 5) hydraulic fluid. Buy the generic kind that doesn't meet the specs of John Deere, Catepillar, New Holland etc. No additives. Comes in gallons from the farm or industrial supply. Use a pump oiler. I lube my chain, shifters, cables, brake pivots monthly. I leave the bike daily out in the rain & snow, parts don't rust or bind.