What type of automatic transmission fluid for a Volvo 740 turbo diesel 4 speed?

For a Volvo 740 Turbo Diesel with a 4-speed automatic transmission, you should use Dexron III or a compatible automatic Transmission Fluid. It's important to check the owner's manual for specific recommendations, as some models may have slight variations. Always ensure the fluid meets the required specifications for optimal performance and longevity of the transmission.