9-3 Sedan, Cabrio '04+, Combi, 9-3X Workshop
13 mpg is very low, I get 18 with AC on in Phoenix when 110 degrees. In rush hour traffic. Aggressive driver too.
My Aero V6 is not what I am driving right now but I think the idle is more like 900 rpm. Not sure that alone would account for such poor mileage.
Please share some more info on...