i have a 04 mazda 3 hatch black .. i fill with Premium ( i feel the difference from Regular ) .. i drive city mostly and i get about 400 ish total .. but thats with me and my speeding .. high rev .. i drove like a normal person with a full tank on Premium once .. and i got well over 450 ish maybe a bit more .. i forgot what was the end total but it was pretty damn good .. but damn .. Premium price these days .. CRAZY! about 55-60 bucks to fill the tank T.T"" Mazda3 Hatch 10/10 on gas ! thumbs up !