Apparently.
I used to think it held 12 gallons, since that is a nice even number, and it seemed to take about 11 when it was looking pretty empty.
But then one day, I was driving recklessly on an empty tank, (in vermont in the middle of the night) and when I stopped to fill up, it took a bit over 12 gallons.
So then I thought it held 14 or 13. 14 is more round and even.
Now I see online that it actually holds (Honda civic LX 1998) 11.9 gallons.
But I once got over 12 in!!!