GMC 2010 GMC Sierra 1500 SL 2010 GMC Sierra 1500 SL SPECIFICATIONS, PRICE & IMAGES Fuel Type: E85 Flex Fuel Exterior Color: Blue City MPG: 14 Highway MPG: 19 Drivetrain: RWD Transmission: 4-Speed Automatic Engine: 4.8L V8 16V MPFI OHV Flexible Fuel Car Features Hot Car Deals! 2019 Honda Civic EX 2019 Ford Mustang Bullitt 2020 Cadillac XT6 Sport AWD 2019 Mercedes-Benz E 450 2019 RAM 3500 Laramie 2007 GMC Sierra 1500 SLE 2019 Ford F-350 XLT 2019 Nissan Rogue S