Showing the performance of the GM 6.2L V8 engine while towing my 8000lb RV travel trailer. Truck is a 2018 GMC Sierra 1500 with the 6.2L engine and max trailering package which equips it with an 8 speed transmission and a 3.42 rear axle ratio and higher payload rating of 1900lbs. (7600lb GVWR)