Doosan (Daewoo) Wheeled loading shovel/dozer Mega Mega 400 V Doosan DE12TIS (2005-2007)

Which oil should you use for your Doosan (Daewoo) Wheeled loading shovel/dozer Mega Mega 400 V Doosan DE12TIS (2005-2007)? Complete advice for all components, such as the engine, gearbox (transaxle), brake system, power steering system and cooling system.