20 gallons unless it is a station wagon then it is 19 gallons.
Assuming you are asking about gallons of fuel, it holds 17 gallons of fuel.
Fuel capacity (gal.): 17.0
17 gallons
I have a 2002 Chevy Impala. I think the gas tank holds about 15 gallons. Actually, it's 17 gallons.
17 u.s. gallons
17
Chevrolet Motor Division recorded the production of 185,325 Impala Super Sport models in 1964.
If you are asking about the Impala it holds 17 gallons.
17.0 US gallons (64.3 liters)
The tank holds 17 gallons total.
A little more than 16 gallons.
20