Fuel Economy » 6
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GREEN | 6 out of 10
Tahoe 2WD: 16 mpg city, 23 mpg highway, 18 mpg combined
Tahoe 4WD: 16 mpg city, 22 mpg highway, 18 mpg combined
Our test trial was over mostly lightly traveled highway-speed tarmac, but we did our share of full-throttle blasts and yet still returned 20 to 22 mpg over 200 miles.
Rated at 16 mpg city and 23 mpg highway for a combined rating of 18 mpg (in two-wheel-drive form), the 2015 Chevy Tahoe isn't going to deliver hybrid sedan-like economy, but it is an improvement over the outgoing model.
Real-world gains may be even higher than indicated by the EPA ratings, depending on the driver's heavy-footedness, as the cylinder deactivation system effectively transforms the Tahoe into a four-cylinder under low-load driving. In our experience behind the wheel of the Tahoe, combined scores in the low-20-mpg range are possible without resorting to hypermiling heroics.
If you add four-wheel-drive to the Tahoe's spec list, EPA-rated gas mileage dips only slightly to 16/22 mpg city/highway, keeping the 18 mpg combined rating.
It's not the greenest people-mover around, but the 2015 Tahoe takes strides toward improvement.