How big is the gas tank on a Subaru Legacy?
The gas tank on most Subaru Legacy models is 16.9 gallons (64 liters).
The size of the fuel tank matters for planning trips, estimating range, and understanding refueling needs. While the Legacy has evolved through several generations, the standard tank size has remained stable for contemporary models, with only minor variations possible based on year, market, or trim configuration. The following overview explains what this means in practice and where to look for exact figures for a specific vehicle.
Tank size for recent Legacy models
For modern Subaru Legacies sold in the United States and other major markets, the official capacity is commonly listed as 16.9 gallons (64 liters). This figure is used across multiple generations and trims, reflecting a balance between cargo/passenger space and driving range.
Owners should note that exact specifications can appear differently in brochures, dealership materials, or the owner's manual, and regional variants (if any) may show minor deviations. Always verify the precise capacity for your specific vehicle-year with your manual or a Subaru dealer if accuracy is critical for planning.
How capacity can vary by year and region
Recent versus older generations
In recent years (roughly 2015 onward), the 16.9-gallon figure has been the standard for the mainstream Legacy lineup. Earlier generations sometimes featured different tank designs or capacities due to changes in engine options, chassis design, or market-specific requirements.
If you are evaluating a used Legacy, the best way to confirm the exact tank size is to consult the vehicle’s original documentation, check the driver’s side door sill sticker, or request the specification sheet from the dealer or manufacturer.
Regional differences
Tank capacity can occasionally vary by region due to emissions standards, labeling conventions, or packaging decisions. While the 16.9-gallon figure is common for North American models, other markets may present the same overall capacity expressed in liters or with slight rounding differences. When precise planning is essential, rely on the local spec sheet for your country or contact a local Subaru official channel.
Practical implications: range and refueling planning
A 16.9-gallon tank paired with typical fuel economy figures for the Legacy yields a practical driving range that commonly falls in the 400–550 miles (640–885 kilometers) band under mixed driving. Real-world range depends on driving style, terrain, weather, and maintenance. Turbocharged variants or all-wheel-drive configurations may influence fuel economy and perceived range, but the tank size itself remains the same in most cases.
When budgeting for long trips or fleet planning, it’s prudent to factor in a buffer for fuel stops and to verify that your specific model’s mpg ratings align with your anticipated range per tank.
Bottom line
Across most recent Subaru Legacy models, the gas tank capacity is 16.9 gallons (64 liters). While this is the standard, always confirm the exact specification for your particular year, trim, and region to ensure precise range calculations and refueling planning.
Summary: The Subaru Legacy typically uses a 16.9-gallon tank, with minor year-to-year or regional variations. For exact figures, consult your vehicle’s manual or the official spec sheet for your model year.
Key takeaways
- Standard tank size for most modern Legacies: 16.9 gallons (64 liters).
- Check your specific model-year documentation for any regional or trim-based differences.
- Tank size influences estimated range and refueling planning, alongside fuel economy.
In short, if you own or are considering a Subaru Legacy, plan around a 16.9-gallon fuel tank as the baseline, while reviewing your exact year and market documentation for precision.
