First Fuel Economy Update - 2016 BMW 340i xDrive Long-Term Road Test

2016 BMW 340i xDrive Long-Term Road Test

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2016 BMW 340i: First Fuel Economy Update

by James Riswick, New & Used Car Editor on June 8, 2016

2016 BMW 340i

We've had our long-term 2016 BMW 340i for a little more than a month now and after crunching its fill up figures for the first time, things are looking promising for our fast Bimmer on the fuel economy front.

We've been averaging exactly 24 mpg, a bit less than its EPA combined estimate of 26 mpg. The best we've managed to accomplish is 31.1 mpg, which I did between Los Angeles and Phoenix at speeds not exactly conducive to thrifty fuel economy. With less wind and lower speeds, I think the EPA's highway estimate of 33 mpg is quite do-able. That's really quite incredible for a car with this much power.

To put it into perspective a bit, our 340i's average thus far of 24 mpg just happens to be what my 1998 BMW Z3 2.8 gets on the highway. Its 2.8-liter inline-6, which was a work horse in the BMW fleet at the time, produced 193 horsepower and 206 pound-feet of torque when found in that era's big-engined 3 Series: the 328i. Its EPA fuel economy was 20 combined (17 city/26 highway). By contrast, the 340i's 3.0-liter turbocharged inline-6 (itself a workhorse among bigger BMW's) is good for 320 hp and 330 lb-ft of torque, while returning 26 combined (22 city/33 highway). For even more perspective, BMW's 4.4-liter V8 back in '98 made only 282 hp and 324 lb-ft, and returned 16 mpg combined.

That's what you call 20 years of progress.

Lifetime Average: 24.0 mpg
Best Fill: 31.1 mpg
Worst Fill: 18.7 mpg
Best Range: 389.1 miles
Total Miles: 3901

James Riswick, New & Used Car Editor @ 3,901 miles

  • Full Review
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  • Road Tests (1)
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  • Long-Term

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