That's very well likely considering the extra weight carried by the Qc's. I can't tell whether mine is 22 or 24 to be honest. I usually get gas at the very latest as soon as the light comes on, not a moment after. And the light is supposed to come on with at least 2 gallons left...

 

well........its official....my millage droped from about 20 average to 12[:@]

its bc i live in a larger city and hit it hard to enter the highway or exit....well....idk

 

if anyone is interested, i drove about 80% highway and got 394 miles on the first tank...still had 2 gallons left so i could have easily gotten over 400 miles on that tank... mileage came out to 19.8... almost exactly the same on the way back from the trip...

i saw some debate on fuel tank size, and from what i have heard 2nd gens came with a 15 gallon or an optional 22 gallon...