How many gallons of gas does a 2005 Chevy Trailblazer take?

The 2005 Chevy Trailblazer's fuel tank capacity depends on the specific model and configuration. It's typically between 18 and 22 gallons. To know the exact capacity for your specific Trailblazer, check your owner's manual or look inside the fuel filler door; the capacity is often printed there.