2019 Silverado I4 Fuel Economy Revealed, Kind of Disappoints by Sebastien Bell October 10, 2018April 23, 2019 Share Comments The EPA estimates that the rear-wheel-drive, four-cylinder Silverado will be able to achieve 23 mpg on the highway and 20 mpg in the city, for a combined rating of 21 mpg. That marks a less than stellar improvement over the 2018 RWD 4.3-liter V6, which despite having two more cylinders and two fewer gears, was good for 18 mpg city, 24 highway, and 20 mpg combined. Despite achieving worse fuel economy on the highway, the 2.7-liter I4 does make 25 more horsepower and 43 more lb-ft of torque than the bigger V6. The AWD four-cylinder, meanwhile, will manage 19 cty/22 hwy and 20 mpg combined, compared to the 2018 AWD V6’s 17 cty/22 hwy and 19 mpg combined. Worse still, the I4 doesn’t stack up all that well against the six-cylinder competition. Both Ford’s 3.3-liter V6 and FCA’s 3.6-liter V6 offer 25 mpg on the highway, and 22 mpg combined. The I4 isn’t even a marked improvement over Chevy’s new 5.3-liter V8, which also gets 19 mpg combined. Chevrolet rates trucks fitted with the four-cylinder at 7,200 lbs of towing capacity and 2,280 lbs of payload, which is competitive in the segment but does raise questions about whether or not the engine will be good enough to overcome the stigma of small engines in big trucks.