What oil to use in huskavana hydrostatic trans?

For Husqvarna hydrostatic transmissions, it's recommended to use a high-quality hydraulic oil that meets the specifications outlined in the owner's manual. Typically, a 20W-50 or a universal tractor hydraulic fluid (UTF) is suitable, but ensure it meets the required standards (like ISO 46). Always check the specific model's manual for any additional recommendations or specifications.