How many miles can you get from a full tank of gas in a Chevy Express 1500?

The Chevy Express 1500 typically has a fuel tank capacity of about 31 gallons. Depending on the engine and driving conditions, it generally averages between 15 to 18 miles per gallon. This means you can expect to get approximately 465 to 558 miles on a full tank of gas. Actual mileage can vary based on factors like load, driving habits, and terrain.