Caterpillar Forklift trucks, gas/LPG/petrol GC30 Mitsubishi 4G64 (1992-1999)

Which oil should you use for your Caterpillar Forklift trucks, gas/LPG/petrol GC30 Mitsubishi 4G64 (1992-1999)? Complete advice for all components, such as the engine, gearbox (transaxle), brake system, power steering system and cooling system.