The 2021 Jeep Grand Cherokee L is available in multiple trims, each with its own estimated fuel economy, here are the EPA estimates for each trim:

1. Limited : 19 MPG City and 26 MPG Highway
2. Summit Reserve : 19 MPG City and 26 MPG Highway
3. Laredo : 19 MPG City and 26 MPG Highway
4. Overland : 19 MPG City and 26 MPG Highway
5. Summit : 19 MPG City and 26 MPG Highway
6. Altitude : 19 MPG City and 26 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 2021 Jeep Grand Cherokee L has a maximum towing capacity of 6200 pounds, when properly equipped. Various factors may impact towing capacity, including weight of passengers, cargo, and options/accessories.