2012 CHEVROLET AVALANCHE LTZ HAS A 5.3L V8 ENGINE AND IS 4WD. THIS TRUCK IS BI-FUEL WHICH RUNS ON BOTH CNG(COMPRESSED NATURAL GAS) OR GASOLINE, IT FEATURES KEYLESS ENTRY REMOTE, REMOTE START, POWER LOCKS, POWER WINDOWS, POWER SEATS, POWER MIRRORS, POWER ADJUSTABLE FOOT PEDAL, AM/FM STEREO, CD PLAYER, DVD PLAYER, DUAL TEMP CONTROL, TRACTION CONTROL, CRUISE CONTROL, HEATED AND COOLED LEATHER SEATS, BACKUP CAMERA, NAVIGATION, HEATED STEERING WHEEL, MULTI-FUNCTION STEERING WHEEL CONTROL, REAR ENTERTAINMET (DVD PLAYER), FACTORY EQUIPPED TRAILER BREAKS, BEDCOVER, SUNROOF, AND TRAILER HITCH. EQUIPPED WITH A IMPCO BI-FUEL CNG FUEL SYSTEM. IT RUNS ON CNG (COMPRESSED NATURAL GAS) OR GASOLINE. A PREMIER ALTERNATIVE FUEL CONVERSION THAT IS EPA-APPROVED. EXTREMELY CLEAN-BURNING AND EFFICIENT. THIS SYSTEM NORMALLY RETAILS FOR 13,500 INSTALLED.