Chevy Trail Boss 2024 Mpg Specs. I averaged 21.3 mpg during my nearly 250 miles of easy. Detailed specs and features for the 2023 chevrolet silverado 1500 lt trail boss including dimensions, horsepower, engine, capacity, fuel economy, transmission, engine type, cylinders,.

20/23/21 (mpg city/highway/combined) fuel type: My review vehicle had another $1,910 in options (assist steps, bedliner, floor mats).