I've an 05 Outlander AWD since new. Since new to now, this SUV gas mileage is always around 11.5 to 12.0 l/100km even it is on the highway all time. The max. distance travel for 1 full tank is just around 400 km. My average speed is around 110 kph on the highway. I've good gas mileage on my other vehicles. I'm wondering if any other 05 outlander owners having the similar high gas consumption or this is particular to my car.

 

Something's definitely wrong with your Outlander.
I get much better mileage -average for last year / 40K kms is 10.5, even with bigger, 3L engine...

 

Thank you for your response. I am suspecting that there may be specific reason why the 05 Outlander gas mileage as shown in this website:
Mitsubishi Outlander MPG (Fuel Consumption) & Emissions
extracts from the website:
Make Model Description Year MPG CO2 (g/km) More Compare?
MITSUBISHI Outlander 2.4 2008 28 240 Details Compare?
MITSUBISHI Outlander 2.4 2007 28 240 Details Compare?
MITSUBISHI Outlander 2.4 2006 28 240 Details Compare?
MITSUBISHI Outlander 2.4 BI-FUEL 2005 20.3 226 Details Compare?
MITSUBISHI Outlander 2.4 2005 28 240 Details Compare?


The 05 Outlander for some reason is especially high in gas consumption.

Your 2010 model has very good gas mileage as quoted from this website. See below:

MITSUBISHI Outlander Warrior 2010 40.9 183 Details Compare?
MITSUBISHI Outlander SE 2010 40.9 183 Details Compare?
MITSUBISHI Outlander GSE 2010 40.9 183 Details Compare?
MITSUBISHI Outlander Equippe 2010 42.8 174 Details Compare?
MITSUBISHI Outlander Elegance 2010 40.9 183 Details Compare?
MITSUBISHI Outlander Elegance 2010 30.4 222 Details Compare?
MITSUBISHI Outlander Diamond 2010 38.7 194 Details Compare?
MITSUBISHI Outlander 2.4 2010 28 240 Details Compare?

 

I miss the website address. It is:
Mitsubishi Outlander MPG (Fuel Consumption) & Emissions