It was supposed to launch awhile ago, but didn’t. Chevrolet is finally offering up most of the details surrounding its all-new 3.0-liter turbo-diesel inline-six bound for the 2020 Silverado 1500.
“From the moment the engine is started, to its idle, acceleration and highway cruising, the 3.0L Duramax performance will change perceptions of what a diesel engine can offer in refinement,” said Nicola Menarini, director for Diesel Truck Engine Program Execution. “With advanced technologies that draw on global diesel expertise, it’s a no-compromise choice for those who want the capability and driving range of a diesel in a light-duty truck.”
Chevy says the new diesel engine is SAE-rated at 277 horsepower and 460 pound-feet of torque, with peak torque lasting from 1,500 to 3,000 rpm. That torque will flow through GM’s 10L80 10-speed automatic transmission, featuring a centrifugal pendulum absorber torque converter that reduces vibrations to improve smoothness, reinforcing its performance, efficiency and refinement. This combination also offers exhaust braking, which uses the diesel engine’s compression to help slow the vehicle, requiring fewer brake applications by the driver when in Tow Haul mode.
Aiding the added gears in fuel efficiency is a start/stop system, similar to the one found on the trucks with gas engines.
Those wanting this fancy new diesel will have to pay for it. Chevy says it is identical in cost to the high-end 6.2-liter and has a $2,495 premium over a 5.3L V-8 model or $3,890 over a 2.7L Turbo model. It will be offered on LT, RST, LTZ and High Country models.
While we finally have power ratings for the Duramax 3.0-liter, we still do not have fuel economy figures. GM has yet to release them, despite the engine going into production fairly soon.