If you are driving normal, then you should be getting a better MPG. Either bad gas, or your fuel injectors are clogged.

Here are my last photos, I had to get gas early due to late night driving with the fam. I probably would have gotten 390+ miles from a full tank.

 

Mine 2011's getting 22MPG roughly ~

 

270miles is definitely a great improvement from 200miles. If you're doing 100% city driving (in Vancouver where traffic sucks from what I hear, due to no expressways through town) then 270-290 is just OK. You shouldn't need to be 'taking it a lil easier and coasting' to achieve it though.

It's been a couple weeks since to started this thread. Have you had it in for a check-up or at least made an appointment?

 

2011 G37X with 20's in NYC. i get about 250-280 per tank.

 

I don't want to get raged at but I dont know how accurate it is BUT, do you pump at select fuel stations? I don't know what Canada has but we have Shell. I usually only pump at shell since it has V-Power which is Techron fuel system cleaner? You might try that or Chevron with Techron. It's with premium. or you can just buy Lucas Fuel Cleaner and dump it in your tank after you pump a full tank of gas.

I'm not sure as I've not tested it but I do feel that my car is a lot more responsive with these additives vs like Kroger gas. Just my experience!

 

current MPG reading 15.5MPG at 19MPH average.

hoping to squeeze out 250 miles out of this tank.

 

If you want to add fuel cleaner to a tank, add it first and then fill the tank.

 

i put shell gas v-power everytime. i dont trust those lil super save gas stations with the cheap gas