* Engine size: The Trailblazer came with different engine options (e.g., inline-4, V6, V8). Larger engines generally get worse gas mileage.
* Driving conditions: City driving yields significantly lower fuel economy than highway driving. Factors like speed, terrain, and traffic all play a role.
* Vehicle maintenance: Proper tire inflation, regular tune-ups, and a clean air filter all impact fuel efficiency.
* Driving style: Aggressive acceleration and braking reduce fuel economy.
Therefore, there's no single answer. While the fuel tank capacity is typically around 20 gallons, you might see anywhere from 200 to 350 miles on a full tank, depending on the factors listed above. To get a more precise estimate for *your* specific Trailblazer, check your owner's manual for the EPA estimated MPG (miles per gallon) for your engine type and then multiply by your tank's capacity. Keep in mind that real-world mileage often differs from the EPA estimates.
