We’re Driving The 2023 Chevy Suburban Duramax Diesel – What Do You Want To Know?
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GM Authority is climbing behind the wheel of the 2023 Chevy Suburban for some first-hand experience with the full-size SUV. The 2023 Chevy Suburban is third model year for the latest twelfth-generation, and our tester is powered by the optional 3.0L I6 LM2 turbodiesel Duramax engine. That all said, we want to know – what you want to know about the 2023 Chevy Suburban Duramax diesel?
Production of the Chevy Suburban takes place exclusively at the GM Arlington plant in Texas, with the SUV riding on the GM T1 platform. The optional 3.0L I6 LM2 turbodiesel Duramax engine is rated at 277 horsepower and 460 pound-feet of torque. The rest of the Suburban’s engine lineup includes the naturally aspirated 5.3L V8 L84 gasoline engine, rated at 355 horsepower and 383 pound-feet of torque, and the naturally aspirated 6.2L V8 L87 gasoline engine, rated at 420 horsepower and 460 pound-feet of torque. All three engines pair with the GM 10L80 10-speed automatic transmission, with both RWD and 4WD offered. Our tester is equipped with 4WD.
Our tester is also an example of the range-topping High Country trim level, and is equipped with 22-inch Sterling Silver Painted Wheels with Chrome Inserts. The exterior is covered in Silver Sage Metallic paint (paint code G6N), and features the Jet Black/Mocha (RPO code HVB) interior colorway.
The cabin includes seating for seven passengers, with two bucket seats in front, two bucket seats in the second row, and a bench seat for three passengers in the third row. Standout features in the cabin include heated and ventilated front seats and second-row heated bucket seats. There’s also a 10-speaker Bose audio system, multi-color head-up display, wireless device charging, a 10.2-inch HD diagonal touchscreen, and Bluetooth media streaming.
Safety and security features include:
- Front Pedestrian Braking
- Forward Collision Alert
- Lane Keep Assist with Lane Departure Warning
- Following Distance Indicator
- Rear Cross Traffic Alert
- Rear Pedestrian Alert
- Safety Alert Seat
Optional upgrades include the Advanced Technology Package (which adds in the GM Super Cruise System and Enhanced Automatic Parking Assist), the Rear Seat Media System (which adds dual rear seat-mounted 12.6-inch screens), power assist steps, a power panoramic sunroof, Air Ride Adaptive Suspension, Adaptive Cruise Control, and the Max Trailering Package.
Standard vehicle pricing is listed at $80,100, while total pricing for options comes to $8,210, with total vehicle and options pricing coming to $88,310. Add in a destination freight charge of $1,795, and the total vehicle price is $90,105.
So then, we have to ask – what do you want to know about the 2023 Chevy Suburban Duramax diesel? Post your questions in the comments section, and we’ll reply as soon as possible.
Ready… set… go.
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Number one fuel economy as tested and would also like to know about how many miles until DEF fills. Any check engine lights or codes as I have heard some people having issues early.
When the new LZ0 Duramax 3.0l diesel will show up under Yukon’s hood?
Currently available for Silverado pick-ups, why not available for Yukon models and other full size SUV? Some reports big updates and improvements over the current LM2 engine.
Some lights about this? Thank you
Serge – we expect the LZ0 to come to the SUVs for the 2024 model year refresh.
Thank you for the follow up Alex.
Here are some unanswered questions I posted after you answered on March 15, 1:27PM after Carl’s comment on March 15, 5:28AM.
Would you please clarify these topics? Thank you
1: It is not clear to me that the Max Trailering Package deletes the extra capacity radiator with diesel engine. Is the diesel package already includes the extra capacity radiator? Or for some other reasons?
2: Max Trailering Package on 4WD shows Autotrac 2-speed transfer case. What is the purpose of this option? Is it the big difference between this option and the Prograde Trailering Sytem? Please make a status with pros and cons.
Thank you
Have they gotten rid of the extremely stupid belt driven oil pump, or at least redesigned it so that the scheduled replacement of the belt does not require removal of the engine?
Still there, but I believe they did increase the maintenance interval on the belt from 150k up to 200k miles on the LZ0. Also, it’s the transmission that needs to be removed to get to the belt, not the engine itself.
People seem to like to harp on the Duramax belt-driven oil pump. How many engine components in ANY engine have a planned replacement interval of 200,000 miles? Sounds like something that can be easily planned for, even if you keep the vehicle that long.
We have a 2022 Suburban 4×4 with the 3.0 turbo diesel Duramax. We have taken it on multiple trips to Kissimmee Florida and back from Mid Michigan. All I can say is WOW!!!!! Our first and only fuel stop is between knoxville and Dalton Georgia. We set the adaptive cruise at 75 mph and average around 27 mpg. That is well over 700+ miles of range per 28 gallon tank. The engine just sips gas and has plenty of passing power when needed. It also does very well in the mountains/hills of TN and KY. I can’t wait until the newer 3.0 diesel is available in the Tahoes. We also have a 2021 Tahoe with the 5.3. That engine is a dog and sucks down the fuel. That same trip with the Tahoe 5.3 is right around 19 mpg.