Is anyone out there have poor gas mileage on a 08 dodge avenger RT with the 3.5? 20-21 is what I am getting. 10 miles straight shot to work and back. Using cruise control and not sitting there and idling. Cruising at 55 mph. Any ideas?

 

if it runs good, are you sure someone isn't stealing your gas?

 

How many miles on it?

 

Is it cold where you are, winter gas seems to get less mileage?

 

Mines an xlt, but same thing, just bought it and only got 260 m per fill up. We learned that in real cold weather dont let it sit and idle to warm up . This time we got 360. Still should be more though I would think. Our big 2000 Impala got better than this so Im thinking something still has to be wrong. DOES ANYBODY KNOW IF CHANGING THE SPARK PLUGS AT ONLY 43000 MILES IS RECCOMENDED 4 BETTER GAS MILEAGE????

 

20-21 mpg for short trips/city driving is normal. The only time you see 30+ mpg is on the freeway (you will only see that on the milage gauge on longer trips, since the gas milage gauge averages.)

Even 10 miles is still a short trip

 

Check the owners manual. Many are on a 30K plug interval.

 

Hello,

First time poster, not a long time reader.

I thought I would post my Kilometer-age, or Milage, for others to compare. I did this to see how my driving habits actually were affecting my driving, and whether the company reported milage was accurate.

This is from a 2010 Aventer R/T with the 3.5L engine, purchased in Feb 2010. At first I used high octane gas, then switched to 89 to see if there was any improvement. All driving is half city (60 km/h) half country (100 km/h).

 

Attachment did not stick? Ah, I had to ZIP an .xls document in order to upload it.

 

My 2010 express 2.4L is averaging 19.4 combined, 75%-25% city- hwy