Bought our 2011 Equinox in November 2010. Complained about the gas mileage from the start and could not get any answers. Now has over 15,000 miles and we drive all flat highway and still can not get over 25 mpg. Supposed to get up to 600 miles to the tank at it's best, but when we drive non-stop all flat highway and still can't get over 425 miles, it is very upsetting. Love the look of the car inside and out, but unfortunately the low mpg trumps all this and wish we would've gone with a different suv.