MPG in a 2.4
...... LOL
03-23-2010, 04:25 PM
#22
Senior Member
Join Date: 09-11-2007
Location: Palm Bay, Florida
Posts: 1,378
I did another cross Florida state trip 449 miles and 13.7 gallons (32.7 mpg) when I refilled when I got home.. Average speed 55 mph. I used 91 octane as an experiment. Good mileage is all about driving technique. My last cross state trip I averaged about 35 mpg using 87 octane.
Both trips used non freeway highways with 55-65 mph max posted speed limits with several 45 mph sections.
Both trips used non freeway highways with 55-65 mph max posted speed limits with several 45 mph sections.
03-24-2010, 02:21 PM
#24
Senior Member
Join Date: 01-21-2010
Location: The Middie OHIO
Posts: 1,700
I will however say that my calculations and the puter are usually different. I use the miles/gallons and my figures are almost 1-2.5mpg HIGHER every time. I've tried premium and 87...with my commute it ends up being about even. Little better milage on Premium but cost offsets any real advantage. Can feel a slight difference in power though. Prolly just split the difference and go with 89
03-27-2010, 09:21 PM
#25
New Member
Join Date: 03-04-2010
Location: Melvin MI
Posts: 16
On my 07 with a auto 2.4 I am getting 30-32 on urban roads. mostly 55MPH speed limit except when you go through some of the small towns. Usually always use my cruise control other wise I look to see I am doing 70.
Bob
Bob
03-28-2010, 08:02 AM
#26
Senior Member
Join Date: 06-21-2008
Location: Dallas, Texas
Posts: 332
That's not city driving, at least not a congested city lol. My average speed is 19mph. I average 21.0mpg with 100% city miles over the last 1000 miles.
03-28-2010, 10:16 AM
#27
Senior Member
Join Date: 03-26-2009
Location: Colorado
Posts: 191
That's why I used the quotations. Denver "city" streets (anything non highway) are pretty wide open, 40-45mph limits most places.
04-01-2010, 10:12 PM
#28
Senior Member
Join Date: 06-14-2008
Location: Minnesota
Posts: 96
I avg 29-30 all the time. I can get 32 avg, but crap is that a lot of work. Tire pressure is the key, run mine at 42 pounds rear and 43 front. Ride is a little stiff, but hypermiling is a challenge I enjoy. I can easily drop it down to 24 if I drive stupid. Use 87 octane gas, I actually see a drop in mpg if I use premium. Cannot run the AC and get these numbers, AC costs about 2 mpg in my HHR. My other car is an 07 Dodge Charger SuperBee SRT8 number 0991 of 1000, we don't discuss miles per gallon, only smiles per gallon.
04-03-2010, 01:22 AM
#30
Senior Member
Join Date: 07-06-2008
Location: Roselle, IL
Posts: 156
I avg 29-30 all the time. I can get 32 avg, but crap is that a lot of work. Tire pressure is the key, run mine at 42 pounds rear and 43 front. Ride is a little stiff, but hypermiling is a challenge I enjoy. I can easily drop it down to 24 if I drive stupid. Use 87 octane gas, I actually see a drop in mpg if I use premium. Cannot run the AC and get these numbers, AC costs about 2 mpg in my HHR. My other car is an 07 Dodge Charger SuperBee SRT8 number 0991 of 1000, we don't discuss miles per gallon, only smiles per gallon.
