Despite its ample size and quick acceleration, the Avalon offers fuel economy figures comparable to some four-cylinder economy cars. liter V6 horsepower. Monthly fuel estimates based on costs in California: $/gallon. Est. Combined City/Hwy. 23 MPG. 19 City.
Regular Gasoline. Combined MPG, MPG. City MPG, Highway MPG combined city/highway, city, highway. gal/mi. EPA range: miles. miles. Total. Based on data from 49 vehicles, 5, fuel-ups and 1,, miles of driving, the Toyota Avalon gets a combined Avg MPG of with a MPG margin of. The Toyota Avalon has an Environmental Protection Agency-estimated fuel economy of 19 miles per gallon in the city and 28 mpg on the highway.