17.0 u.s. gals (64.3 liters) as per Capacities and Specifications on page 5-102 of your "Owner's Manual".....
Maximum capacity is 17 gallons.
17 us gallons
In the fuel tank...
I own an '04 Impala and according to the Owner's Manual it holds 17 gallons.
17.5 Gallons
Inside the fuel tank
22.0 gallons
depends what motor you have. Tank sizes vary per motor. Smaller motor=smaller tank.
The 2003 Impala has a 17 gallon fuel tank
A 2004 Chevy Impala LS will Hold 17 Gallons, Specs include 17 in the city, And 25 on the highway. In which that translates to 357 mi city/544 mi highway.
The gas tank on the 2005 Chevrolet Impala holds 17 gal..
The full fuel tank capacity on a 2005 Chevy Suburban is 31 gallons. It averages 16 mpg.