Got 27.903 this tank. Not too impressive by this site's standards, I know. But that's a 2mpg improvement from last tank, and 3.2mpg from the tank before that. I've had many trips in the mid-30's (best was over 38, most averaged around 33-34), it's just my in-town driving with shorter hops, odd low-speed streets, and parking lots that's been dragging my down. This gives me hope though! I've been going through a lot of the low-speed and parking lot tips, we'll see if I can possibly top 28mpg this tank?
'67 Mustang - out of commission after an accident
'00 Echo - DD
'11 Kia Rio - Wife's DD
'09 Harley Nightster - 48mpg and 1/4 miles in the 12's
Yay! I'll bet your SVT ECU/PCM is going "but I want to add more gas!!!! What is up with the meat-bag behind the steering wheel?!?!?!? If I didn't need his eyeballs to get around, I'd replace him another computer like me!".