Should GM Build a 2020 Chevy Tahoe or Suburban with a 3.0L Duramax Diesel Engine?

2019 chevy tahoe suburban big v8 engine option 6.2L
2019 Chevy Tahoe and Suburban Premier Plus Special Editions

Yes GM, please build the 2020 Chevy Tahoe or Suburban with a 3.0-liter Duramax diesel. Power and efficiency are compelling reasons. Imagine having the option of a 277 horsepower, 460 lb-ft of torque 2020 Chevy Tahoe or Suburban with a 3.0L Duramax diesel engine.

2020 chevy tahoe towing trailer
The next-generation Chevrolet Tahoe was recently caught testing.

It’s not that far fetched when you look at GM’s desire to get a return on their investment. The potential for a Chevrolet Suburban diesel makes for a compelling argument against Ford’s surging Expedition to be sure. That’s a lot of torque out of a power-plant that could be very economical.

Keeping it simple, let’s just look at the current Chevrolet Suburban:

  • You get a 355 hp 5.3-liter V8 that makes 383 lb-ft of torque @ 4100 rpm. A six-speed automatic transmission is standard.
  • A 420 hp 6.2-liter is optional and it makes 460 lb-ft or torque @ 4100 rpm. It’s hooked up to a 10-speed automatic transmission.
  • The 2WD 5.3-liter V8 version of the Suburban is rated at 15 mpg city and 22 mpg highway. The 6.2L V8 is rated at 14 mpg city/23 mpg highway with 2WD and 14 mpg city/20 mpg highway with 4WD.
  • A 31-gallon fuel tank is standard and maximum range is estimated at over 650 miles.
  • Maximum towing is 6,300 lbs with a maximum GVWR of 7,300 lbs. 7,500 with the 6.2L.

Currently, GM announced the numbers with their 3.0-liter Duramax diesel in the 1/2-ton pickup truck. In that configuration, it is the same price increase as adding a 6.2-liter gas engine.

The new diesel should be much more efficient, capable of longer range and there’s a chance it can tow more. With that being said, I am curious if the new independent rear suspension (IRS) will lower the tow rating on the next generation Tahoe and Suburban.

Still, the potential of a new, lighter 2020 Chevy Tahoe or Suburban with a 3.0L Duramax Diesel, an IRS and (possibly) an updated 10-speed automatic transmission is pretty compelling.

By the way, do you remember the 1982 6.2-liter Detroit Diesel V8 available in the Suburban?┬áIt made 130 horsepower and 240 lb-ft of torque. It’s wasn’t a very big hit.

Let’s hope the new diesel is a hit… IF they offer it.

What’s your opinion?

Easily amused by anything with four wheels, Nathan Adlen reviews vehicles from the cheapest to the most prestigious. Wrecking yards, dealer lots, garages, racetracks, professional automotive testing and automotive journalism - Nathan has experienced a wide range of the automotive spectrum. Brought up in the California car culture and educated in theater, childhood education, film, journalism and history, Nathan now lives with his family in Denver, CO. His words, good humor and video are enjoyed worldwide.