Washington may be doubting how much consumers really care about fuel economy, but not General Motors. They’re ramping up their quest for the best overall MPG ratings for full-size pickups by greatly expanding the engines available for the all-new 2019 Chevrolet Silverado light-duty, including a new turbocharged I4 that can cruise on only two cylinders.

Paired with an 8-speed automatic transmission and automatic stop/start, the new 2.7-liter I4 will be rated at 310-hp and 348 lb-ft of torque. It will do MPG battle with the V6 EcoBoost in the aluminum-bodied Ford F-150, and the redesigned Ram 1500 with its mild hybrid V6. 

Thanks to its Active Fuel Management, the new Chevy 2.7T pickup will be able to run on only two cylinders. That is a first for any pickup, and should boost the Silverado’s real world fuel economy significantly over the formerly smallest engine, a 4.3-liter V6. The also redesigned GMC Sierra will get the I4 turbo as well.

Other engines available for Silverado 1500 include the already announced Duramax 3.0-liter I6 turbo-diesel, updated versions of the 4.3-liter V6, 5.3-liter V8, and 6.2-liter V8. The new Chevrolet Silverado 1500 will go on sale late in the fall. See more here.