Scores 27 Highway MPG and 23 City MPG! This GMC Sierra 1500 delivers a Turbocharged Diesel I6 3.0L/ engine powering this Automatic transmission. WHEELS, 18 X 8.5 (45.7 CM X 21.6 CM) 6-SPOKE MACHINED ALUMINUM with Dark Grey Metallic accents (STD), TRANSMISSION, 10-SPEED AUTOMATIC, (COLUMN SHIFTER) ELECTRONICALLY CONTROLLED with overdrive and tow/haul mode. Includes Cruise Grade Braking and Powertrain Grade Braking, TIRES, 265/65R18SL ALL-SEASON, BLACKWALL (STD).*This GMC Sierra 1500 Comes Equipped with These Options *TIRE, SPARE 265/70R17SL ALL-SEASON, BLACKWALL (STD), STEERING COLUMN LOCK, ELECTRICAL (Beginning with start of production through July 31, 2023, vehicles will be forced to include (R7N) Not Equipped with Steering Column Lock, which removes Steering Column Lock. See dealer for details. Vehicles built on or after July 31, 2023 will include (N06) Steering Column Lock.), SLT PREFERRED EQUIPMENT GROUP Includes Standard Equipment, SEATS, FRONT 40/20/40 SPLIT-BENCH with covered armrest storage and under-seat storage (lockable) (STD), REAR AXLE, 3.23 RATIO, ONYX BLACK, LICENSE PLATE KIT, FRONT, JET BLACK, PERFORATED LEATHER-APPOINTED FRONT OUTBOARD SEAT TRIM, GVWR, 7200 LBS. (3266 KG), 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..* Visit Us Today *You've earned this- stop by Sun Buick GMC located at 3333 Sunrise Hwy, Wantagh, NY 11793 to make this car yours today!