22 City for me after a couple of tanks. That is with some spirited driving :)

 

I'm at 28-29 commuting 15 miles each way. I always shift with the boost between 5-10 psi.

 

Don t reset your avg MPG until you do your oil change then you will really know your AMPG

18 - 19 mpg sounds about what my turbo PTC friends are complaing about

 

Over This Past Weekend ( Memorial Day W.e.) I Got A Best 35.1 Mpg & I Was Pretty Much Babying It. Was Holding This For Like An Hr & A Half. Averaging Like 63 Mph.

 

I put 105 miles down a day on my SS 5-speed and I am pulling 28-29mpg all day long.... unless I let the 2.0 off the chain... Still, in the LOW 20's with the hammer down.

 

Another NE OH SS, and I'm doing pretty much the same. It's sweet compared to my 16 mpg pickup for a 70 mile daily commute. Plus if you GOTTA go fast, you can.

 

I'm getting 21-22 in the city and 25-26 on the highway. Just took a Bakerfield road trip the other day around midnight averaged 300 miles round trip and got 23mpg @ 100mph. That was fun.

 

I finally got mine on the highway and setting the cruise control to a nice crusing speed of 70MPH the instant Gas MPG was saying 34MPG. With just under 1400 Miles on the HHR the average MPG is showing 24.2MPG. Not too shabby....

 

I got 33 mpg with cruise,A/C running at 60 mph ... 99 mpg downhill

 

I got my worst tank of gas thanks to the Hot Rod Power Tour. I averaged 24-25 mpg, but that was playing follow the leader for 200 miles. I was following a GT500, Procharged Z06, S281 Salleen and a couple of Mach1's, so needles to say the whole drive was very very spirited