Earlier this week, GM Authority was the first to report that the 2023 Chevy Silverado 1500 and 2023 GMC Sierra 1500 would offer the new 3.0L I6 LZ0 turbodiesel Duramax engine, set to replace the 3.0L I6 LM2 turbodiesel Duramax in the powertrain lineup for both nameplates. Now, we’re here to report that the new LZ0 engine will not be available under the hood of the 2023-model-year GM SUVs.
For those who may not know, the Chevy Tahoe, Chevy Suburban, GMC Yukon, and Cadillac Escalade all currently offer the 3.0L I6 LM2 turbodiesel Duramax. However, according to GM Authority sources, these four GM full-size SUVs will not offer the up-and-coming 3.0L I6 LZ0 turbodiesel Duramax engine set to debut in the 2023 Chevy Silverado 1500 and 2023 GMC Sierra 1500.
As it stands, specs and in-depth info on the new LZ0 Duramax engine are still forthcoming. However, we do now that the new oil-burner will feature turbocharged aspiration, 3.0 liters of displacement, and an inline-six cylinder arrangement. The new LZ0 could also be considered the “second iteration” of GM’s Duramax 3.0L six-cylinder, with the LM2 offered as the first.
As for expectations, the LZ0 could improve on the LM2 in terms of fuel economy, emissions, output, and capacities.
At present, the 3.0L I6 LM2 turbodiesel currently available in the Chevy Silverado 1500, GMC Sierra 1500, and full-size GM SUVs is rated at 277 horsepower at 3,750 rpm and 460 pound-feet of torque at 1,500 rpm, with fuel economy rated at 31 mpg highway, 23 mpg city, and 26 mpg combined when equipped by the the 2022 Chevy Silverado 1500 RWD. Max payload is 1,930 pounds, while max towing is 13,300 pounds for the pickup models.
Further engine options in the full-size GM SUV lineup include the naturally aspirated 5.3L V8 L84 gasoline engine and 6.2L V8 L87 gasoline engine, although engine availability is dependent on the model and trim level selected.
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Comments
LZ0 is being paired to a higher spec trans, so stands to reason there will be a torque bump, at least.
With the independent rear suspension and a “possible” torque / power bump… I wonder if the tahoe/suburban rear ends can’t keep up, yet? – DemonWorks
I don’t think it’s that, the Trucks got the Duramax 3.0s before the SUVs did. I’m guessing as a real world indicator on sales and whether or not it was worth the R&D.
Although, the article hasn’t stated a source that confirmed this statement, so I’ll take this clickbait as a grain of salt
Most of GM Authority’s articles are clickbait… they just throw a bunch of things against the wall and see what sticks… sometimes they accidentally get something right… but most times they miss completely..
Jake-
You are welcome to come up with material for a blog EACH AND EVERY DAY….
The Escalade V is getting the LT4 with 650 ftlbs on hand. I doubt the new diesel makes that much.
More than likely it will be offered in 2024 with the new engine being focused towards silverados with the tow package. Lmao, you struggle getting a truck right now with any motor.
Suspect this is a case of another good idea falling victim to a low take rate. Reviews were glowing, but maybe diesels are a hard sell with the traditional SUV crowd…or dealerships were simply too scared to order/stock them, for fear that they’d be a hard sell with their traditional customers.
Considering the dealer never marked the Chevy Cruze Diesel when I bought one 4 years ago and let it languish on their lot for 6 months this is no surprise.
Did this article just say the the LZ0 is going to be a turbo diesel?
I feel like that’s way bigger brew than to just be placed randomly in an article. It’s also a major departure from the current LM2.
Anyone know if this is accurate?
The current version is turbo as well.
EDIT: I am an idiot. You all are correct, the current one is turbo.
My bad
YOU DON’T.
Probably waiting for the 24 refresh
I was just waiting for the Silverado refresh to get the diesel now I will get the refreshed engine as well!
And here I was hoping they would put the L5P in a Yukon XL for me.
Another insane decision by GM management.
This weening the public away from IC engines is going to bite GM in the tokus big time.
In the meantime Stellantis is going to put a diesel in the Grand Waggoneer.
It’s not viable for Stellantis to put a Diesel in the Grand Wagoneer. With the automaker pushing for electrification there will be a plug in hybrid version of the Grand Wagoneer.
There are sightings of a rumoured upcoming full-size RAM suv being spotted in a disguised cover that sounds just like the RAM truck 6.6L Cummins diesel. It seems logical for a RAM suv to offer Cummins power, whereas the Jeep suv will likely be gas or plug-in only.
shoulderboards:
The Cummins diesel engine product is 10×’s better than anyone else’s. The 5.9 12 valve Cummins diesel brought Dodge trucks out of the toilet and made them a serious player. As we all know RAM is a serious heavyweight due to the Cummins engine.
Caterpillar sadly squandered this opportunity. When Chrysler went to them for a proposal on a pickup diesel CAT poo pooed them. CAT did the same thing to Paccar when they came to them for an in-house branded engine, and Cummins ran with it.
Cummins is now in Fat City.
both the writer and the commentators write about what’s not going to happen. How about getting up to about 500 feet and telling us what will happen. Is the real news that the SUV’s will lose the diesel option as some people assumed, but the article did not state that. Or will the SUV’s maintain the LM2 and the trucks get the new version?
The existing transmission is the weak point in the drive train that is holding back the towing capacity rating. it was designed for peak torque input at above 3000 rpm, which most gas engines deliver, whereas the diesel achieves peak torque at or below 1500 which is ideal for towing. But the clutches holding the gas engine torque are too small to hold the diesel low rpm torque, this assumes the peak torque numbers are the same except for rpm. you wonder why with diesel engines being the towing champions, are the tow ratings less for the diesel? its the transmission clutches. They would burn up.
I expect the changes to address this issues, but that has not been said.
Words without meaning might or might not be better than outright propaganda.
Dear Mary,
For Christmas, can I please get the new 3L turbo diesel in the upcoming Canyon/Colorado update. “Pretty Please” cherry on top, blah, blah…
Thanks ahead of time.
Signed,
Patiently been waiting a few years for my midsize purchase and would really love a diesel option.
Alfredo Acosta:
Funny that Stellantis / Jeep announced it and showed a prototype of the Grand Waggoner with their Italian diesel last weekend at the huge annual Jeep Easter Rally in Moab, Utah.
Months down the road and still no word as to why the new 3.0L LZ) is not offered in the full size SUV. Clearly its not a full size issue…. And the trucks that are getting the new 3.0L in 20232 have the same transmission as the full size suv’s so it cant be the trany clutch issue. Could it be that GM is trying to burn through their bad inventory and supply chain planning issues before they switch 100%? Clearly its not smart planning to have two very similar but slightly different engines to plan and stock arts for….. but then GM is not known for doing many smart things lately.
Maybe they are doing changes to the motor that impact packaging. Note that the updated Tahoe, Suburban, and Yukons are not going to be out until 2023 MY.
They do sell a lot of diesel SUVs.
If they can bulletproof this engine, it could easily make 40-50% or sales as CAFE standards start to get more strict.
Stellantis with RAM and Jeep being their two big huge cash cows are going all in with diesels. The Chrysler relationship with Cummins brought Dodge trucks back from the dead. Iococca saw the potential of Jeep and bought American Motors just for the Jeep nameplate.
Cummins now makes the best on highway diesel engines.
Stellantis and Toyota are playing the EV cards very close to their chests. They are banking on Brandon not getting reelected. Most plausible at this time.
Mary Barra is banking on a second term for Brandon and after that Kamala Harris in the seat for a couple of terms. This is extremely dangerous corporate planning.
Have you noticed that the world demand and prices for fossil fuels is currently rocking off the charts.
If they can keep the Russian – Ukraine War going for another few years, it will keep a lot of industries and workers in Fat City.
World War 2 put America into Fat City after the depression and made for the glorious fifties when America was then King of the Hill.
Putin’s game plan will make Russia great again and China and India know this.
Stay tuned for an ever changing and interesting world.
A happy Earth Day to all. Earth Day started in 1969 in wacky California. EV’s for all and EV’s forever.
Suburban mom’s do not want to deal with diesel. The diesel pumps around my area are always covered in dirt and grime.
A whooooole lot more than just suburban moms drive these things man.
The diesel pumps at the Maverick Stores and fuel outlets in the Western USA are immaculate.
I buy diesel at Sam’s Club and Kroger on the same pump as the gas. This is not the 70s. You don’t have to do to the truck stop
Fatone:
The pump facilities at major truck stops such as Flying J, Love’s, and TSA are immaculate and have stations for autos and Light trucks and a separate station for commercial vehicles. Have not noticed dirt and grime at the diesel pumps.
BTW: The Flying J fuel chain was purchased by Berkshire Hathaway, aka Warren Buffet.
JWL – Where do you live? Since way back around the year 2000 all the major pumps in the South East all have Combo pumps. Meaning all pumps have gas/diesel/non-ethanol all available at every pump. Sounds like your confusing truck stops with regular passenger car fuel stations. Or maybe you haven’t visited the majority of the US since before the turn of the century? Just to clear things up, Diesel has cleaned up its act long ago. The ancient days of the loud, belching, nasty oil burners are long gone. The new generation Diesel engines are so good you would be hard pressed to tell the difference from a driver or spectator aspect. Except the driver will notice better power/economy and resale value. My $0.02
Not like that in Michigan or other states in the upper midwest. Stations that have diesel typically have 20 to 25% of their pumps set up for diesel. I’ve been driving diesel vehicles since 2000 so it has become second nature to me to always be on the lookout for stations that have diesel and what the price is.
I was anxiously waiting to buy a tahoe with that engine until I saw the design. I wouldn’t touch it with a 10’ pole.
the engine design or the vehicle design or both?
Mostly the engine. But the new vehicles are largely a step backward. No solid rear axle, shifter in the console what’s next unibody?
Funny but I see a fair number of Yukon and Tahoe diesels my local area. I think it is less about the take rate and more about the engine changes driving the pull.
All I can say is a absolutely love my 2022 GMC Sierra SLT Crew Cab 4×4 with the 3.0 Duramax! An amazing package and that refreshed interior is amazing!
You are a very luck person! I’ve been trying to order my 3L Silverado for months now. The dealership has my spec but the factory wont accept the order because they cant get trailer mirrors. With the advent of the LZ0 I’m thinking of waiting for a 2023.
To my knowledge, the take rate on the 3.0 diesel in the SUVs was higher than GM expected, so it’s probably just going to be delayed for the “country cousins” in SUV form … same way it wasn’t available right away after introduction of the LM2
Will already be designed the only real issue with the lm2 is the exhaust brake barely engages. Exhaust brake needs to work as well in tow mode as the big 6.6 Duramax.
All of you out there towing with the 3L’s how well does the engine brake work in tow mode? I tow a 14,000lb trailer with my 6.6 and my engine brake holds the trailer great! What can I expect with a 3L towing a 7300lb trailer! How will the engine brake work? And what kind of towing economy can I expect?
Seems the reason for the LZ0 is emissions based; federal emissions requirements for half ton diesel pick up trucks is increasing for the 2023 model year. The diesel SUVs aren’t being modified at this time because the new emissions standards only apply to the half ton pick up segment.
Ok so, the comment is from May 2022. now its 11/2022. any change on the LZ0 being available on the 2023 suburban?
I have a 2022 Escalade 4×4 Sport Platinum with the 3.0 Diesel and love it. Having previously owned the platform since inception with gas power, I can tell you the Diesel variant is better for in city driving. The off-the-line grunt you get from the diesel can’t be matched by any equally sized gasser. With max torque below 2K RPM it’s a major pleasure to drive red light to red light or up hill. Not to mention zero noise inside or outside the vehicle. The LM2 is an amazing bit of technology. GM definitely hit the bullseye with this one. My suggestion is to go drive one. Then you will understand why orders have been only climbing for this engine in every model offered. Wish GM would offer this engine in the Express/Savana platforms. That would be a home run for business owners.
Edward M. Pate
I had a business trip to the copper mine in Ontanogan, Michigan in the upper peninsula about 30 years ago. It was like going back in time 50 years. I can relate to your comment on the retail fuel outlets having a lack of diesel pumps. In the West diesel use by light pickups is huge. There is a huge gaggle of 3/4 and 1 ton crew cabs.
A little 3 liter diesel engine on a three quarter ton Suburban frame with a car full of people towing an Airstream up a 7% grade or any grade is insane.
Clessie Cummins, RIP, would be spinning in his grave.
Put the 6.6 Duramax in your full size SUV’s. This is not rocket science.