Where to test 2020 GMC Sierra AT4 Duramax?
The publication put its 2020 Sierra HD test vehicle on a 208.1-mile loop in Michigan, taking the AT4-equipped truck on both city streets and out on the highway. It was a near-perfect day for this test, with the weather perfectly clear and sunny and the ambient air temperature sitting at a crisp 60 degrees.
Is the GMC AT4 a good car to buy?
The light-duty GMC AT4 is an excellent package, with a 2-inch lift, upgraded Rancho shocks, and Eaton’s MLocker in the rear axle that uses a flywheel mechanism and a clutch system to engage when the wheels slip. The package is good with either of GMC’s V8s. And made short work of the rocks and mud. But it’s great with the diesel.
What’s the horsepower of a GMC Sierra diesel?
The all-new 3.0-liter inline six-cylinder turbo-diesel develops a class-leading 277 hp at 3,750 rpm. It also generates 460 lb-ft of torque from 1,500-3,000 rpm. Those are solid numbers to be sure. And one thing that separates the GM engine from the competition is that this is the only completely new light-duty diesel in the segment.
What kind of transmission does GMC Sierra have?
We imagine the Allison-branded 10-speed automatic, which is the only available transmission on Sierra HD models, massively helps with the truck’s overall fuel economy. When we tested the 2020 GMC Sierra AT4 2500HD earlier this year, we said we were “pleased by the Duramax engine’s power delivery, smooth and free of unwanted turbo lag.”
Where is the 6.6 liter Duramax diesel engine made?
The 6.6L Duramax LMM engine was manufactured at the GM Duramax plant in Moraine, Ohio, USA. Follow our Duramax LMM news coverage.
When did the GMC Duramax LB7 come out?
Duramax LB7 Specs & Info. The LB7 Duramax was first introduced for the 2001 model year as General Motors retired its 6.5L Detroit diesel. In every possible way, the Duramax was superior to the outdated Detroit and marked a revolutionary turning point for GMC and Chevrolet pickups in the diesel marketplace.
What is the first year of the Duramax?
The LB7 Duramax was first introduced for the 2001 model year as General Motors retired its 6.5L Detroit diesel. In every possible way, the Duramax was superior to the outdated Detroit and marked a revolutionary turning point for GMC and Chevrolet pickups in the diesel marketplace.
When was the millionth Duramax V8 engine made?
Another accomplishment during this time period is the fact that the millionth Duramax V8 engine built was an LMM, assembled in April 2007. The LMM’s release was a response to tightening emissions controls, though that didn’t prevent GM from devising innovative ways to refine the power plant.