Scores 23 Highway MPG and 21 City MPG! This GMC Sierra 1500 delivers a Turbocharged Diesel I6 3.0L/ engine powering this Automatic transmission. TRANSMISSION, 10-SPEED AUTOMATIC WITH ELECTRONIC PRECISION SHIFT, ELECTRONICALLY CONTROLLED with overdrive, tow/haul mode and steering column paddle shifters. Includes Cruise Grade Braking and Powertrain Grade Braking (STD), SUMMIT WHITE, SEATS, FRONT BUCKET with center console (STD).*This GMC Sierra 1500 Comes Equipped with These Options REAR AXLE, 3.23 RATIO, JET BLACK WITH KALAHARI ACCENTS, PERFORATED LEATHER FRONT SEAT TRIM, GVWR, 7200 LBS. (3266 KG) (STD), ENGINE, DURAMAX 3.0L TURBO-DIESEL I6 (305 hp [227 kW] @ 3750 rpm, 495 lb-ft of torque [671 Nm] @ 2750 rpm) (Includes (KW5) 220-amp alternator and (K05) engine block heater.) (STD), ENGINE BLOCK HEATER, AUDIO SYSTEM, 13.4 DIAGONAL PREMIUM GMC INFOTAINMENT SYSTEM WITH GOOGLE BUILT IN APPS SUCH AS NAVIGATION AND VOICE ASSISTANCE, INCLUDES COLOR TOUCH-SCREEN, MULTI-TOUCH DISPLAY, AM/FM STEREO Bluetooth streaming audio for music and most phones; featuring wireless Android Auto and Apple CarPlay capability for compatible phones (STD), AT4 PREFERRED EQUIPMENT GROUP includes standard equipment, Wipers, front rain-sensing, Windows, power rear, express down, Windows, power front, drivers express up/down. Feel Confident About Your Choice *Carfax reports: No Accidents Reported, 9 Service Records.