Volkswagen (VW) (EU) Kübelwagen Type 82/181 181 (Kurierwagen) 1500 (1969-1980)

Which oil should you use for your Volkswagen (VW) (EU) Kübelwagen Type 82/181 181 (Kurierwagen) 1500 (1969-1980)? Complete advice for all components, such as the engine, gearbox (transaxle), brake system, power steering system and cooling system.