The 2013 GMC Yukon XL 2500 is available in multiple trims, each with its own estimated fuel economy, here are the EPA estimates for each trim:

1. Base: 10 MPG City and 15 MPG Highway
2. SLE: 10 MPG City and 16 MPG Highway
3. SLT: 10 MPG City and 16 MPG Highway

It is important to remember factors such as driving style, weather conditions, and the use of features such as Eco mode can impact fuel efficiency.

The 2013 GMC Yukon XL 2500 has a maximum towing capacity of between 9400 and 9600 pounds, when properly equipped. Various factors may impact towing capacity, including weight of passengers, cargo, and options/accessories.

Here is what's new for the 2013 GMC Yukon XL 2500:

• Full Roof Rack
• Heated Steering Wheel
• Memory Seat(s)
• Rear Seat Heaters
• 20 Inch Plus Wheels