We should expect a decent uptick in 2019 Silverado fuel economy when Chevrolet finally details the new full-size truck later this year. Thanks to Dynamic Fuel Management, or Delphi’s Dynamic Skip Fire technology, the 2019 Silverado’s 5.3-liter and 6.2-liter V8 engines could be at least 5 percent more fuel efficient.
Car and Driver dove into the system and detailed where Chevrolet could maximize its gains. It’s worth noting that the 2019 Silverado will not implement the technology exactly as how Delphi has created it. Delphi has shown the technology with a belt-based mild-hybrid system, which adds torque and widens the range in which Skip Fire works. Chevy’s system also features its own algorithm to work the cylinder deactivations.
The 2019 Silverado can run on as little as one cylinder, though, it’s unlikely that circumstance will ever occur. Instead, the system’s algorithm will consistently choose which cylinders will fire in order to maximize efficiency under load.
Perhaps the best news is that the change between cylinders won’t be felt, per a Skip Fire prototype. It’s unclear how the 2019 Silverado’s system will behave since its engineers have tinkered with it, but C/D reported a seamless transition in a prototype vehicle. The only noticeable difference was audible at times.
2019 Silverado fuel economy will also likely rise thanks to a weight reduction and improved aerodynamics. The full-size pickup dropped up to 450 pounds with its redesign.