We are running our AC all the time and our average driving in town and out is 25mpg........ makes my Outlaw smile, says it is still cheaper than the bullets we shoot

 

Sweet ride Mama, great choice of color! Wish I got your MPG though, nowhere close for me however. Enjoy that sweet ride, and all the looks you get going down the road. Todd (Uma)

 

Just drove my Premier Edition HHR from Philly to Maryland..Averaged 24 to 25 mpg. Very happy with the end result!

 

I have the 2.4L with auto transmission. I took it into the dealership for a 3,000 mile oil change (it still had 70% oil life left according to computer but I wanted to get that first oil out). I reset the mpg's for the 20 mile highway drive home and got 35.6 mpg's.... Normal combined mileage is 22 though.

 

A 20 mile reading is meaningless.

 

I am getting about 36 mpg on the highway and 24 city. I have the 2.4 with a modified exhaust and air intake. Not a bad increase for $200 in parts and labor!!

 

Currently have 580 miles. I do about 22 mpg with the average speed of 21 mph. I'm sure to get better fuel economy as my average speed increases. Going to Vegas this weekend. I'll find out for sure what my HHR can really get on the highway.

 

This is what Chevy is putting on their 2008's. I think this is a more accurate MPG Sticker. I have been getting 29-30 mpg/highway. I would really love to test some of your HHR's that are getting mid 30's.

 

All 2008 vehicles will have more accurate mpg's. Need fed regulation.

 

What does the average speed on the DIC have to do with mileage? Mileage is affected by so very many variables and at such low mileage your car is not even "broken in". With time the MPG may change but average speed has no correlation. Now the speed you drive at does.....