I get 350 miles per tank, and that highway and city.

 

I did a trip using premium and fueled with 30 miles left at 440 miles on the Odo. I sweated the last 20 miles...

 

I just filled up. 447 miles and 15.1 gallons = 29.60 mpg. That was highway and city driving. BY THE WAY, I thought we had a low fuel warning light that was supposed to come on. Did I dream reading that in the manuel??

 

I,m still too busy grinnin' about having my HHR, I haven't even checked the fuel range on a full tank!!! I did manage to check and got nearly 29 miles per gallon on my trip to Chicago...

 

I drive 75-80 on the highway. It's all flat road pretty much except for a mile or two of my drive to work and back.

 

Your DIC says low fuel across the screen.

 

Dang, it must have to get pretty low. I probably only had about 1 gallon left. I guess when it says that, you gotta go quick.

 

I've only got about 2k on my HHR but the DIC usually indicates around 28.8 - 29.4 mpg or so. I'm getting over the 450 per tank as advertised. I haven't run it low enough for the low fuel indicator to come on, but it's supposed to come on when you get down to about 3 gallons left in the tank. Most low fuel warnings are set to around 3 gallons for two reasons, one is to give you sufficient warning so you don't run out of gas, and secondly it's because your fuel pump relies on the gas to keep it cool and for lubrication so the manufactures don't want you to run it dry. My HHR has the 2.4 with a manual tranny, I also get better mileage using premium gas. I tried a tank of regular and my MPG dropped to just under 28 MPG. I also do about 50/50 highway and city driving and my wife tells me I have a lead foot because I tend to launch hard and push the upper limit's of around 10 MPH over the speed limit.

 

I've had the "LOW FUEL" display come on several times. It's around 1.5gals I think. At least that's what I gathered based on how much fuel I put in during the fillup. Even at 25mpg, that gives you over 40-miles to find a gas station!

 

Just turned 1000 miles and I am getting between 24 and 25 mpg. 90 percent of my driving is highway and I am usually driving about 73 mph, overall pretty happy with mpg. should get a little better with some more breakin time and when the winds die down around here it has been windy as hell.