Boasts 26 Highway MPG and 22 City MPG! This GMC Sierra 1500 boasts a Diesel I6 3.0L/183 engine powering this Automatic transmission. TRANSMISSION, 10-SPEED AUTOMATIC, ELECTRONICALLY CONTROLLED with overdrive and tow/haul mode. Includes Cruise Grade Braking and Powertrain Grade Braking, SEATS, FRONT BUCKET with center console (STD), REAR AXLE, 3.23 RATIO.*This GMC Sierra 1500 Features the Following Options *LPO, AT4 HIGH CLEARANCE STEP (dealer-installed), JET BLACK WITH KALAHARI ACCENTS, PERFORATED LEATHER FRONT SEAT TRIM, GVWR, 7100 LBS. (3221 KG), ENGINE, DURAMAX 3.0L TURBO-DIESEL I6 (277 hp [206.6 kW] @ 3750 rpm, 460 lb-ft of torque [623.7 N-m] @ 1500 rpm) Includes (KW5) 220-amp alternator and (K05) engine block heater.), ENGINE BLOCK HEATER, DARK SKY METALLIC, AUDIO SYSTEM, PREMIUM GMC INFOTAINMENT SYSTEM WITH 8 DIAGONAL COLOR TOUCH-SCREEN, INCLUDES 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, advanced voice recognition, in-vehicle apps, personalized profiles for infotainment and vehicle settings (Note: (PZ8) Hitch Guidance with hitch view is included with trim. Includes SiriusXM with 360L.) (STD), AT4 PREFERRED EQUIPMENT GROUP includes standard equipment, ALTERNATOR, 220 AMPS, Windows, power rear, express down.*Know You're Making a Reliable Purchase *According to Carfax's history report: No Damage Reported, No Accidents Reported, 24 Service Records.