A robust structure, impressive braking and unexpected stability also contribute to the Durango's best-in-class trailer tow capability. On models equipped with the Pentastar V-6 engine, the Durango can tow up to 6,200 pounds. When coupled with the 5.7-liter HEMI V-8 engine, the new 2014 Dodge Durango offers trailer tow capability of up to 7,400 pounds – more weight than a 24-foot boat and trailer, and up to 65 percent more than the competition.All-new class-exclusive eight-speed automatic transmission The new 2014 Dodge Durango now features Chrysler Group's new eight-speed automatic transmission with rotary shifter and steering wheel-mounted paddle shifters as standard equipment on all models. This state-of-the-art transmission improves fuel economy up to 9 percent, along with enhanced performance and smoother shifts. All these attributes perfectly enhance Durango's fun-to-drive nature. Fully electronic, the eight-speed automatic features on-the-fly shift map changing, with manual shifting capability using steering-wheel paddle controls. More than 40 individual shift maps for specific conditions optimize shift quality and shift points for fuel economy, performance and drivability. The intelligent software is attuned to the performance requirements of almost any driving demand. The transmission efficiency and wide ratio spread provide the best possible fuel economy by operating at a lower engine rpm in both city and highway environments. The addition of more gear ratios also helps reduce the gaps normally associated with upshifting and downshifting. Gear changes are nearly imperceptible due to the evenly spaced gear steps between each gear ratio. Internally, the transmission has four gear sets and five shift elements (multi-disc clutches and brakes). Only two shift elements are open at any time. With fewer open shift elements, drag losses due to multiple parts rotating relative to one another are reduced, improving fuel efficiency. Powertrain choices Named one of Ward's 10 Best Engines for three years, Durango's standard 3.6-liter Pentastar V-6 engine paired with the new standard eight-speed transmission delivers up to a 9 percent improvement in fuel-economy when compared with the previous transmission, not to mention improved performance. The standard flex-fuel 3.6-liter Pentastar V-6 engine generates an impressive 290 horsepower (295 horsepower on Rallye) and 260 lb.-ft. of torque, and can tow up to a best-in-class 6,200 pounds. The 5.7-liter HEMI V-8 engine produces a best-in-class 360 horsepower and 390 lb.-ft. of torque with a best-in-class tow rating of 7,400 pounds. The 5.7-liter engine's Fuel Saver Technology with cylinder-deactivation seamlessly alternates between smooth, high-fuel-economy four-cylinder mode when less power is needed and V-8 mode when more power is in demand. This optimizes fuel economy when V-8 power is not required, without sacrificing vehicle performance or capability.