To get an accurate estimate, you should:
* Specify the model year: A 2023 Suburban will have different fuel economy than a 2010 Suburban.
* Specify the engine: Suburbans come with different engine options (e.g., V8, diesel), each with different fuel efficiency.
* Check the EPA estimates: The EPA provides fuel economy estimates for each vehicle model. You can find this information on the EPA's website (fueleconomy.gov) or on the manufacturer's website (Chevrolet.com).
Generally speaking, expect lower MPG than a smaller, more fuel-efficient vehicle. You'll likely see figures in the 14-20 MPG range, but it could be lower or higher depending on the factors mentioned above.