2010 GMC Yukon XL 1500

Active Fuel Management Technology
Don't expect gas-mileage miracles from the new cylinder-deactivation system, but, when dealing with heavy vehicles, even a modest fuel-economy improvement is worth the effort.

Autoride Suspension
Available real-time damping lets a Yukon XL cross the line from acceptable ride comfort into a tempting – perhaps even delightful – road experience. You won't forget you're in a truck, but an Autoride-equipped Yukon XL promises more pleasant hours on long hauls.

With space for up to nine occupants, depending upon the seating configurations for the individual rows, the 2010 GMC Yukon XL delivers great passenger comfort in a spacious interior. A lower-positioned instrument panel helps add leg space, front seats have fore-and-aft and recline travel and second-row seats recline, as well. There is ample second-row leg and knee room, third-row headroom and second- and third-row shoulder room. The third-row seats fold, but not flush into the floor as on the Ford Expedition. The spilt third-row-seat sections are removable, but can prove awkward and heavy. The Yukon's glove boxes are huge, and available power fold-and-tumble second-row seats ease third-row access.

The Yukon XL boasts wraparound front and rear fascias and integrated running boards. GMC claims this is the most aerodynamic Yukon to date, helped by a sleek 57-degree windshield angle. The XL's 130.0-inch wheelbase and 222.4-inch overall length compare to 116.0 and 202.0 inches, respectively, for regular-size Yukons. Wide tracks enhance stability. Doors extend over the rocker panels and large headlamps deliver maximum lighting spread. The XL Denali gets chrome accents, a distinctive honeycomb grille, unique headlamps with etched GMC logos, clear-lens taillamps and 18-inch polished wheels.

The Yukon XL 1500 has a standard iron-block 5.3-liter V8 that produces 310 horsepower, and a 6.2-liter V8 is optional. Yukon XL Denali models have a 6.2-liter V8 that generates 403 horsepower. In the heavy-duty 2500 series, an iron-block 6.0-liter V8 with variable valve timing makes 352 horsepower. With the exception of the 2500's iron-block 6.0-liter engine, all XL V8s operate with Active Fuel Management technology, and the 5.3-liter and 6.2-liter V8s are available with E85 compatibility.

5.3-liter V8 Flex Fuel (iron block)
310 horsepower @ 5200 rpm
335 lb.-ft. of torque @ 4400 rpm
EPA city/highway fuel economy: 14/20 (2WD), 14/19 (4WD)

5.3-liter V8 Flex Fuel (aluminum block)
310 horsepower @ 5200 rpm
335 lb.-ft. of torque @ 4400 rpm
EPA city/highway fuel economy: 11/16 (4WD, E85), 14/19 (4WD, gasoline)

6.0-liter V8
352 horsepower @ 5400 rpm
382 lb.-ft. of torque @ 4200 rpm
EPA city/highway fuel economy: N/A

6.2-liter V8 (Active Fuel Management)
403 horsepower @ 5700 rpm
417 lb.-ft. of torque @ 4300 rpm
EPA city/highway fuel economy: 14/20 (gasoline), 10/16 (E85)

6.2-liter V8
403 horsepower @ 5700 rpm
417 lb.-ft. of torque @ 4300 rpm
EPA city/highway fuel economy: 12/19 (2WD,gas), 12/18 (4WD, gas), 9/14 (E85)