How big is a 2005 Chevy Impala gas tank?
The 2005 Chevrolet Impala uses an 18.5-gallon (70-liter) fuel tank.
In practical terms, this official capacity figure is used by owners, service manuals, and fuel economy references to estimate driving range and plan refueling. The following details break down the capacity and what it means for real-world use, including note-worthy variations within the model year.
Official tank capacity
Here is the authoritative figure for the 2005 Impala’s fuel storage, as cited in manuals and data sheets.
- Fuel tank capacity: 18.5 gallons (70 liters) for 2005 Impala models.
While 18.5 gallons is the standard figure, minor discrepancies can appear in published sources due to rounding or catalog differences. The widely accepted figure for the 2005 model year remains 18.5 gallons.
Notes on variations
Across the 2005 Impala lineup, the tank size is essentially constant. Some documentation might round the figure differently, but the nominal capacity is consistently listed as 18.5 gallons. The actual usable fuel can feel slightly different based on fuel gauge calibration and refueling practices, but the tank itself is 18.5 gallons.
Practical implications
Understanding the tank size helps with trip planning and estimating how often you’ll need to refuel, depending on driving habits and conditions.
- Nominal capacity: 18.5 gallons (70 liters).
Real-world range will vary with driving style, terrain, and whether you’re mostly city or highway driving. Use the capacity as a baseline, and consult your fuel economy data for a personalized estimate.
Summary
The 2005 Impala’s gas tank holds 18.5 gallons (about 70 liters). This standard capacity serves as the baseline for planning fuel stops and estimating range, with actual performance depending on driving conditions and fuel economy.
