Ki Hoon Kim

I have toyota camry 2002-2006 sportivo V6 and by computer, 22L/100KM. At the fuel up comes to be about 16L/100KM. I had 2000 Avalon V6 3L, Had about same. Full tank(60L) of premium fuel would last 380-400KM. Did you figure out what was wrong? Yes, I do have heavy foot..... Maybe my foot needs diet????