How many miles can a Subaru Ascent go on a full tank of gas?
Around 440 miles on a full tank in typical mixed driving, with variations based on year, drivetrain, and driving conditions.
What determines the range?
Range is a function of three main factors: the size of the fuel tank, the vehicle’s fuel economy (how many miles per gallon it gets), and how you drive. The Subaru Ascent uses a 2.4-liter turbo engine paired with all-wheel drive in most trims, which affects both efficiency and the size of the tank. Real-world results will vary with cargo, terrain, climate controls, and driving style.
The numbers you should know
Fuel tank capacity
The Subaru Ascent typically carries a fuel tank of about 19.3 gallons (approximately 73 liters).
Fuel economy (AWD, 2.4L turbo)
EPA estimates for the current-generation Ascent place combined fuel economy around 23 mpg, with about 21 mpg in the city and 27 mpg on the highway for most AWD models.
Using those figures provides a straightforward range estimate for a full tank:
- City driving: about 405 miles per tank (19.3 gallons × 21 mpg).
- Highway driving: about 521 miles per tank (19.3 gallons × 27 mpg).
- Mixed driving: about 444 miles per tank (19.3 gallons × 23 mpg).
In practice, your actual range will depend on factors such as cargo load, tire pressure, outside temperature, and how aggressively you accelerate or brake.
Real-world variability
Hybrid or highway-heavy trips can push toward the upper end of the range, while city-heavy stop-and-go traffic or pulling a heavy load can reduce it. Some model years may have minor variations in tank size or efficiency, but the 19.3-gallon tank and roughly 23 mpg combined figure remain a good baseline for most AWD Ascent configurations.
Summary
The Subaru Ascent is typically capable of roughly 440 miles on a full tank in mixed driving, with ranges ranging from about 405 miles in city driving to over 520 miles on the highway. For planning trips or daily use, using the combined figure provides a practical estimate, while recognizing that actual results will vary with conditions and driving habits.
