It depends on your driving, the gas you use, etc. Don't use Citgo or Gulf.. that fuel is not as good as Exxon, Mobil, or Shell. I only use Exxon, Mobil or Shell now. I filled up with Citgo gas twice. Both times I got @ 55miles less per tankful. Exxon, Mobil, or Shell. I usually get 352 miles per tan...