What type of automatic trans fluid for a 05 international 4300?

For a 2005 International 4300, you typically need to use Allison Transynd or a compatible automatic Transmission Fluid that meets the Allison C-4 specifications. It's important to check the vehicle's owner's manual or consult with a dealer for the specific requirements, as different configurations may have slightly different fluid needs. Always ensure the fluid you choose meets the manufacturer's recommendations for optimal performance.