Chevy 1500 3.0L Duramax (LZ0) Diesel Engine Review **Heavy Mechanic Review** | Should You Buy It ??
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Published 2023-07-24
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First gen 3L duramax review - • Chevy Silverado 1500 3.0 Duramax Dies...
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Towing Gear:
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This is the second gen 3L duramax in these chevy 1500 pick up trucks and I really like these duramax diesel engines. they are incredibly fuel efficient and can now tow up 13,300lbs.
I like that these engines are inline 6 designs because of the 3 main advantages including being naturally very well balanced engines, easy torque creation and great engine bay layouts.
I also really like that the emission systems on these 3L duramax diesel engines are not showing many issues which is a huge bonus seeing that emission usually kills the modern diesel engine.
some of the upgrades of this second gen duramax diesel engine include, new steel pistons, stronger connecting rods and thicker cylinder wall linings. this new engine also has an updated turbo, new cylinder head, new intake cam and intake valves as well as new fuel injectors.
all these upgrades really help to open up this engine and let it make more power.
some issues to look out for include the oil pump belt and fuel pump simply because of their location making it difficult to replaced them.
there is also some rumors of oil consumption with these engines but it is also very early on and tough to conclusively say if this is an issues or not.
overall I really like these little 3L Duramax and thing GM has a good product on their hands.
All Comments (21)
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This guy did the best review job I have ever seen. He is obviously extremely technical and comprehends the design and performance aspects of this engine. GM should hire him!
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2023 lz0 bought November of last year. Have 50k mile and go from central VA to WVA 2-3 times a week across the mountains and average 30-31mpg 70-75mph. Wind and rain lowers that of course. Best truck i have ever had and have had a bunch of diesels.
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Great job. Thank you. You didn’t get all side-tracked by the infotainment system or the moonroof. Your title was about the engine and your content was about the engine. New subscriber.
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93,000 miles in 30 months. It's a pleasure to drive. Pulls 7K trailer with ease. Best 50 mile mpg is 42.9.
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Excellent technical description of the engine. I just got my new Silverado with Duramax diesel 3.0. Only have 900 miles on it but so far very pleased I went with diesel vs. gas (excellent fuel economy). Also, I expect it will hold its value very well. Thanks again for your review.
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Thanks for making this video Alex. Alot of good info. on a vehicle I'm considering. All of the items you described as internal engine improvements such as the connecting rods, pistons, and wall thickness, indicate that GM is looking at much higher outputs for this engine. If anyone else knows of reliability issues with these engines please let me know. Until you mentioned it, I hadn't heard about the oil pump belt replacement access issue. Thanks for that.
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Currently have a '23 Silverado 1500 LTZ with the LZO coming up on a year now with no problems whatsoever, and I absolutely love it! I would have never considered a diesel until I test drove this one just to get it out of my system, and I fell in love. Amazingly strong engine and great fuel mileage!!
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I have a ‘23 Silverado LZ0 and have over 10k miles. Zero issues. Tow 6k travel trailer in high winds of southern texas and get 12-15 mpg. Not towing gets 26 combined. Diesel has been cheaper here than gas and I can’t begin to complain. Best power train in a truck I’ve had. Traded for a 21 f150 that was beginning to have issues. Very happy with what I traded up to.
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I hope The LZ0 beats my 2021 sierra LM2. I got a whole 2750 miles before getting the engine changed. Oil leaks from every corner...66 days in the shop. Then lemon law took over. Still a great looking and driving truck!
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Thanks for the detailed review. Nice to her it from a diesel mechanic. After looking at everything out there I am inclined to go GMC Duramax 3.0 AT4.
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have pretty much the exact truck. Love it, pulls the boat, and camper much better than my 5.3 did. Fuel economy is amazing. I hope it's more reliable then my last two 5.3s were.
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I've been researching these trucks because I'm going to buy one this year, this is the best video review I've seen by far and I've watched a ton of them. Great Job.
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I’m a diesel mechanic from the uk but I absolutely love the American trucks from old to new and small pick ups and vans to big HGVs
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My buddy has this in a Yukon XL. So far he loves it.
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Nice video, just bought 2023 gmc at4 with this engine, great information, nice delivery
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Excellent and informative info. I found it very helpful for making a future diesel purchase. I am getting a Tahoe and I am waiting for the 24/25 mid life redesign to get this engine.
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Love mine so far. Really made me feel better when you mentioned the design of the emissions. That had me really worried about buying diesel.
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Great video brother, loving my first Silverado 1500 Duramax!
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Bravo!!!! This is what I wanted, an awesome breakdown of the engine to make my choice easier on going with the Duramax Diesel.
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Great review and pleasantly surprised of your approval. I wish you could have hooked up the trailer.
