The 2020 Chevy Silverado with the 3.0-liter Duramax diesel tops Ford and Ram in fuel economy. 
The in-line six diesel employs an aluminum block and nixes a balancer shaft to reduce weight. 
Expect the new Chevy Silverado with the 3.0-liter Duramax diesel engine later this fall. 

The fuel economy numbers are in, and it’s looking good for the new Chevy Silverado 1500 Duramax. The turbo-diesel engine returns an EPA-estimated 23/33 city/highway in two-wheel drive; 23/29 with four-wheel drive. The figures are a solid win for Chevy in the ongoing truck battle between Detroit’s Big Three. By comparison, the F-150 Power Stroke with two-wheel drive achieves 22/30 city/highway and 20/25 in a 4×4 configuration. The current Ram EcoDiesel comes in at 20/27 city/highway for two-wheelers and 19/27 with four-wheel drive. ?We designed the all-new Silverado and the all-new 3.0-liter Duramax turbo-diesel to deliver both performance and efficiency,? explained Tim Herrick, Silverado Executive Chief Engineer. ?The engine utilizes state-of-the-art technologies to optimize every drop of fuel, and takes advantage of architectural changes to make Silverado larger, lighter, and more aerodynamic than before.”
2020 Chevy Silverado 1500 Duramax: Setting The Stage
This new 3.0-liter Duramax is the first diesel since 1997 for a Chevy light-duty truck. It’s also the automaker’s first inline-six configuration for full-size, light duty trucks. With the truck mark...