Casey's gas is not good!

Don't think we have any near by

I have tried other gas from Kum & Go and Hy-Vee but they don't seem to last as long.

I'm new here so I didn't know where to post it. I live in Iowa City and only use Costco Top Tier gasoline.

There are no roof racks and A/C only on 1. Window rarely open. Air filter recently changed. I have tried to follow different things to increase gas mileage, slow stop/start,etc. Didn't know if there was anything mechanical wrong with it.

I have a 2009 Pontiac Vibe 2.4L Base FWD with 127,000 miles and love it except...I have noticed how bad the fuel economy is; 18 mpg city and 23 mpg highway. I have only had it for a couple years now and it has never improved. There are no slippages or any other noticeable problems (no check engine l...

I have a 2009 Pontiac Vibe 2.4L Base FWD with 127,000 miles and love it except...I have noticed how bad the fuel economy is; 18 mpg city and 23 mpg highway. I have only had it for a couple years now and it has never improved. There are no slippages or any other noticeable problems (no check engine l...