--- title: "Replaced already? New GM 3.0L Duramax Diesel LZ0 coming" url: "https://pickuptrucktalk.com/2022/04/replaced-already-new-gm-3-0l-duramax-diesel-lz0-coming/" publisher: "Pickup Truck + SUV Talk" content_signal: "search=yes, ai-input=yes, ai-train=no" author: "Tim Esterdahl" published: "2022-04-19T20:33:46+00:00" modified: "2025-07-23T15:14:40+00:00" image: "https://pickuptrucktalk.com/wp-content/uploads/2022/04/2022-Chevrolet-Suburban-Diesel-103.jpg" --- # Replaced already? New GM 3.0L Duramax Diesel LZ0 coming By Tim Esterdahl Published: 2022-04-19T20:33:46+00:00 Updated: 2025-07-23T15:14:40+00:00 ![Featured image]() Just a few years ago, an all-new, clean-sheet-designed 3.0-liter Duramax Diesel engine made its debut wowing journalists and consumers. Now, it seems, a new version of this engine is coming called the 3.0-liter Duramax diesel LZ0. The current LM2 3.0-liter turbodiesel is an inline-6 with 277 horsepower and 460 pound-feet of torque at just 1,500 RPM. This engine is mated to a 10-speed automatic transmission and has returned nearly 30 MPG with 2WD Sierra and Silverado trucks. New for 2022 is the upgraded max towing at 13,300 pounds with 1,930 pounds of max payload. Plus, the LM2 is inherently balanced and provides a very smooth and powerful driving experience. It is one of my top five favorite engines on the market. ![3.0L Duramax Diesel LZ0]() 3.0-liter Duramax Diesel LZ0. (Image courtesy of General Motors) ### **What is a Duramax Diesel LZ0?** The new engine is reportedly in the works according to *[GMAuthority.com]()*. It is expected to retain the same inline-6 design while taking things up another notch. Specifically, it is expected to have more performance, better fuel efficiency and lower emissions. Exact details on this engine will be out later this year with the engine reportedly going into the 2023 GMC Sierra and Chevy Silverado as well as GM full-size SUVs. ### **Why replace it so soon?** One of the big questions for the media and consumers is why GM would replace the LM2 after a short run of just three years. I theorize this is likely due to a variety factors — such as the two ongoing issues with the [long crank, slow start]() and [the need to drop the transmission to access the timing belt](). These factors have long been a concern among consumers and a redo of the LM2 with a new name could put those negative concerns behind it. Finally, the LM2 doesn’t fit in the redesigned [Chevy Tahoe]() Z71. This off-road designed Tahoe has better ground clearance to handle the trails yet has been limited to the 5.3-liter V-8. The reason? Chevy engineers couldn’t route the cooling lines correctly for the diesel to fit into the new Z71’s curved front fascia. Maybe the LZ0 addresses that issue as well. ### **The bottom line on the Duramax Diesel LZ0** Let’s see. Better fuel economy, less emissions, more performance and possibly fixing the shortcomings of the LM2 engine? Yeah, I’m all in on this LZ0 if it can achieve those goals. You should be, too. It’s a great engine. [Embedded video]() **Related posts:** - [3.0L Duramax diesel has known long crank start issues, but no recall]() - [2020 GMC Sierra 3.0L Duramax Diesel towing MPG]() - [Does the Chevy 3.0L Duramax diesel have a design flaw?]() ## Structured page information ~~~json [ { "@context": "https://schema.org", "@graph": [ { "@type": "Article", "@id": "https://pickuptrucktalk.com/2022/04/replaced-already-new-gm-3-0l-duramax-diesel-lz0-coming/#article", "isPartOf": { "@id": "https://pickuptrucktalk.com/2022/04/replaced-already-new-gm-3-0l-duramax-diesel-lz0-coming/" }, "author": { "name": "Tim Esterdahl", "@id": "https://pickuptrucktalk.com/#/schema/person/82b06f99329f69a069a5ab6caed18593" }, "headline": "Replaced already? 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