Skip to main content

You’d be wrong if you thought Chevy was shying away from the Duramax diesel engine in anything below the Silverado 2500HD. While the midsize class is done with diesel, the Chevy Silverado 1500 receives an upgraded version of the 3.0-liter Duramax engine for 2023. This new power plant delivers more horsepower and torque, giving us more of what we want when it’s time to do big, burly, truck stuff.

What did GM do to give the Duramax engine more power?

New Duramax LZ0 Diesel Engine
Duramax LZ0 Diesel Engine | Chevrolet

To find more power in a relatively small displacement diesel engine, GM got creative. Motor1 tells us they improved this engine with:

  • A retuned turbocharged
  • Upgraded fuel injectors
  • New steel pistons
  • Updated combustion bowl

Does this new diesel engine fix some of the previous problems?

The previous version of the 3.0-liter turbocharged diesel 6-cylinder Duramax engine had a couple of issues. The LM2, which is the 2022 version, suffered from slow starting. Some of the changes made to bring us the LZ0 model fix this problem and enhance the engine’s usefulness.

How is the new Duramax engine in the Chevy Silverado more useful than before?

2022 Chevy Silverado 1500 best pickup truck
2022 Chevy Silverado 1500 | Chevrolet

The changes made to this engine do more than add more power, but they also make it easier for you to enjoy driving with this engine. The new pistons are shorter than before, which helps with the long-crank starting problem. This beefier Duramax engine doesn’t require inspection until 200,000 miles, which is twice the previous number.

How much more power will you have with the new Chevy 3.0 Duramax diesel truck?

The upgraded LZ0 version of this engine delivers 305 horsepower and 495 lb-ft of torque. That’s an increase from the 2022 model, which offered 277 horsepower and 460 lb-ft of torque. This engine still mates to a 10-speed automatic transmission for every truck and SUV including this power plant.

Chevy made a strange announcement and almost hid this diesel power upgrade

2023 Chevy Silverado 1500 ZR2 Bison price
2023 Chevy Silverado 1500 ZR2 Bison | Chevrolet

Chevrolet hid the announcement of a more powerful Duramax engine in the folds of the 2023 Chevy Silverado ZR2 Bison news. This is a bit odd because both the ZR2 and ZR2 Bison models of the Silverado 1500 are not eligible for this diesel engine. Why pair the two announcements together and bury the Duramax news? Oh well, some things are better left without explanation.

Which GM vehicles will include the new LZ0 engine?

For the 2023 model year, the upgraded Duramax diesel engine is available for the Chevy Silverado 1500 and GMC Sierra 1500. Starting in 2024, this list expands to include:

  • Chevy Tahoe
  • Chevy Suburban
  • GMC Yukon
  • GMC Yukon XL
  • Cadillac Escalade
  • Cadillac Escalade ESV

Which Chevy Silverado trims offer the new Duramax diesel engine?

2023 Chey Silverado 1500 Duramax diesel engine
2023 Chey Silverado 1500 | Chevrolet

Many of the half-ton Chevy truck trims include an option for the new Duramax LZ0 engine. These trims include:

  • Custom Trail Boss
  • LT
  • RST
  • LT Trail Boss
  • LTZ
  • High Country

When will we know the most important information about this new Chevy Duramax engine?

Red 2023 Chevy Silverado Trail Boss on the highway
2023 Chevy Silverado Trail Boss | Chevrolet

The fuel economy, towing, and payload numbers of the new LZ0 engine are still unknown. As we get closer to the 2023 Chevy Silverado arriving at dealerships, we should learn this information. Once we have these numbers, we’ll share them with you.

Next, check out the changes to the new 2023 GMC Canyon, or watch the Chevy Silverado Duramax diesel engine video below:


Expect to Pay More for 1 of the Worst Full-Size Pickup Trucks