2012 BMW X3 xDrive35i: Road Trip Fuel Economy
August 15, 2012
As I set out on my road trip in our long-term 2012 BMW X3 xDrive35i, I had no illusions that I was going to break any fuel mileage records. Nobody drives a 300-horsepower, 4,200-pound crossover because they really care about mpg.
While driving 3,253 miles, I put in 134.6 gallons of fuel, of which 40.161 gallons were 92 octane from gas stations in Washington. The rest was good old California 91. I planned my fuel stops so that I wouldn't have to stop in Oregon and delegate the refueling to gas station staff.
Here's how I did against the X3's 19 mpg city, 26 mpg highway, 21 mpg combined EPA rating.
Best mpg: 25.7
Worst mpg: 22.3
Average mpg: 24.2
Longest tank: 445.0
In short, not even close to the numbers I got in our long-term 2011 528i, where I averaged 29.3 mpg and eked 531 miles out of single tank.
Erin Riches, Senior Editor @ 14,414 miles (again)