The all-new Silverado's next-most-efficient setup is found in the rear-wheel-drive versions equipped with the 5.3-liter V8. The EPA rates that version at 17 mpg in the city, 23 on the highway and a combined 19 mpg. But the new turbo-four also compares favorably to the most fuel-efficient versions of the Silverado's top competitors. The Ford F-150's base engine, a 3.3-liter V6, delivers an EPA-estimated 19 mpg in the city, while the city fuel-economy offered the 3.6-liter V6 mild-hybrid found in the Ram 1500 is equivalent to the Silverado four at 20 mpg.
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