How big is the gas tank on a 2004 Chevy Venture?
The fuel tank capacity is 20 gallons (about 75.7 liters).
In practice, tank size affects refueling frequency and driving range for the 2004 Venture. This article outlines the official capacity and how it translates to real-world use for this aging GM minivan.
Official fuel tank capacity
The 2004 Chevrolet Venture is equipped with a 20-gallon fuel tank (roughly 75–76 liters). This capacity is standard across most trims of that model year, including configurations with the 3.4-liter V6 engine.
What that means for range and fueling
With a full tank, the Venture’s practical range depends on fuel economy. The 3.4L V6 in this era typically achieves around 17 mpg in city driving and about 25 mpg on the highway. Using those figures, a full tank would yield roughly 340 miles in city conditions and up to about 500 miles on highways, though real-world results vary with driving style, cargo load, and tire condition. Regular maintenance, proper tire inflation, and smooth driving can help maximize fuel efficiency.
Summary
In short, the 2004 Chevy Venture uses a 20-gallon gas tank, offering a reasonable balance between range and vehicle weight for its time. Real-world mileage will vary based on driving conditions and vehicle upkeep.
