We still don’t know the power ratings of the upcoming GM Duramax 3.0L Turbo Diesel inline-six-cylinder engine, but we now know one more detail about the highly-anticipated motor.
GM Authority has uncovered the official RPO code of the new baby Duramax, with Tom Read of GM Powertrain communications telling us that the new 3.0L Duramax is assigned RPO code LM2. In the 2019 Silverado 1500, the new straight six Duramax will be mated to the new GM 10-speed automatic transmission.
Power, torque and fuel economy figures for the LM2 are not yet available, and will be released closer to the launch of the all-new 2019 Silverado Diesel and 2019 Sierra Diesel, the two launch vehicles for the new motor. So far, our only clue comes from the official reveal presentation for the all-new 2019 Silverado 1500, during which GM product chief, Mark Reuss, stated that the new 3.0L Duramax diesel will be class-leading.
“One of the new engine choices is an all-new three-liter Duramax diesel, which is an in-line six that builds on our diesel expertise”, said Reuss. “Now I’m not going to go into the numbers today, but some of our competition has already given their numbers on their new diesel, and I am really confident that we’ll have the best-performing diesel in this segment”.
In order for the new 3.0L Duramax Diesel to be truly “best-performing” in the segment, it would need to beat the 250 horsepower and 440 pound-feet of torque ratings of Ford’s new 3.0L PowerStroke in the 2019 F-150.