So excited to show you guys my Little D! Been wanting to for a while, timing just felt right.... Let me know what you think! No serious replies... Check out the Boost Auto Lumistep M1 running boards video here kzfaq.info/get/bejne/f851hJBpyp3ToH0.html

I have now owned this truck with the diesel motor for just over a year with almost 25k miles on her. Zero defects. This motor is perfect for this truck. Plenty of pep at all the bands. Nothing but kudos for this truck. I average 28 mpg and on multiple trips to Florida got 40 mpg. Amazing. Being picky my low rating would be the seat when driving over 500 miles gets stiff but no complaints on short trips. The oil gauge is accurate but always shows at the low side which could be missed if low pressure was an issue. Very good truck.

Just turned 3000 miles on my 2023 LZ0 in a GMC SLT crew. No issues so far. I’m averaging 28 mpg. Hoping for many trouble free miles. Looking forward to future posts that include your new ride.

I drove an LM2 truck and was blown away. My wife has the 6.2 in her 2017 Yukon and it makes great power but that diesel power comes on immediately. Can’t wait to get an AT4 diesel.

Absolutely love my first 2023 GMC 1500 Denali diesel. It’s incredible.

Looking forward to more content about this truck. It’s at the top of my list

Looking forward for more content like these one I just got a RST with the 3.0 and I’m loving it. Swap from a 5.3 to a 3.0 big difference

I recommend taking it on the highway a little bit more. Your truck will regen when your dpf gets full (80-90%). City trips and idling, like stopping at red lights, will cause your dpf to fill up faster, causing more regens. Another thing that helps reduce the amount of regen cycles is making sure the truck actually gets to operating temps. I have a ram 1500 ecodiesel and I didn't know this stuff when I bought it. Glad I know it now, and obviously, my truck is different than yours so maybe it won't be as much of an issue but still something to look into. Good luck and that's a mighty fine Little D!😂

Just SUBBED & looking forward to videos on the LZ0. I've had mine about 4 months now & just did the first oil change tonight. I opted out on free oil change & put AMSOIL in mine after positive research. I average 24 to 26 mpg usually w/ a tonneau cover & my best was 38 with a tail wind. Honestly it's the best truck I've ever owned to date. One long trip so far with mountain climbing & it got 31 mpg. I love my Little D. 😂

I Love the review! - I'm a 2015 Sierra 1500 5.3 owner, and I'm totally happy with it, but i'm always looking to the future. - Cheers!

I went on a trip yesterday and got 37.7 mph. With my 23 Chevy baby diesel. No oil use yet. My dealer changes oil and filter rotates tires and tops off the def for $66 dollars. Love your baby D.

Great video on the Little D. Very detail and helpful.

Love the truck! I just purchased my first diesel truck. Got me a 2024 rst silverado 3.0 and I love it.

Well done; an open comparison between 3.0 and 6.2! With a fun attitude!

Congrats on the new wheels!

We have a 2022 Yukon 4x4 with the LM2 and it has been a killer power plant. Ours is just at 24k miles and have had zero issues.

I have a deleted and tuned 2017 Ram 6.7L (420 hp / 850ft/lbs) and average 21.5 mpg. Love my diesel!

Great video. Touched on everything that i feel is important to potential buyers!

Great video. Considering the Duramax in my next GMC, so this was helpful

I have a 2021Sierra AT4 with the lil Duramax. Excellent performance, no issues at 29000 miles. We loved it so much, we bought a Yukon 2023 last July with the new diesel engine. Now has 8500 miles on it, PERFECT running engine. Fuel mileage is stupid crazy on both. She's getting 28.5 mpg at 80 mph on the freeway. Mine does about 26 mpg at those speeds. Still good but GM has obviously changed some torque dimensions between the two as her Yukon doesn't accelerate as fast. The Sierra truck will throw you sideways in a heartbeat...

Great vid! Beautiful Lil D

Nice truck! Bought my 2023 silverado 3.0 LZ0 with max tow package in April and already have 10k miles. Truck has been great with 0 issues. Also tows our 8000lb rv with no issues.

Thank you for your time

Thinking about getting a new 2024 AT4 and you have helped in that decision.

Great video man, keep them coming 😉

I have one and love it so far!

Nice ride. Good Luck with it.

Have a 21 with 50000 miles still love the truck Only fill up with DEF about every oil change and I tow a utility trailer often The only real issue I’ve had was addressed this week at the dealer an oil leak coming from the dip stick tube

I had this exact vehicle for a while, Great power and efficiency. DEF was a non-issue when unloaded - easily a 1000+ miles. Towing a 24' snowmobile trailer loaded, DEF range dropped into the 400 mile range. You can always top off at truck stops or throw a spare DEF can in the bed.

Congrats on the new truck! I'm also considering switching from a gas GMC over to the new LZ0. I hope it's still doing well for you!

Had the same issue with the upper glove box. There is a service letter out on that and the dealer fixed mine. Works well now. I just turned 12000 miles and love my AT4. Long trip ( 2400 miles) I averaged 28 mpg running 70-75 mph. Also towed, short trip, but tired 7500 pounds like it wasn’t even there. No oil consumption noticed here either. Here’s to the next 12,000 miles!

Beautiful truck. Toyota guy here but this is the one alternative I’d consider.

Nice video. We have 23 SLT and frequently get low 30's mpg. When you are looking at fuel costs its easy. Diesel here $3.90/28 mpg = .14 per mile. Gas $3.20/16 mpg = .20 per mile ! Hope this helps John

Loved the review.

Bought my Lil D 2024 AT4 today! Still under 50 miles on it, but I LOVED the drive home!

Nice vid. We are currently shopping for a Sierra with the "Lil" D engine.

Thank you for this video. I am looking to get one and your comments help me a lot. Thanks!😊

We have a 2022 AT4 with the 3.0. Best running truck I have ever owned. No issues at 10,000 miles. The trans is so smooth

Great video love the truck I'm looking at a 2024 silverado with same motor. Thanks for the video!!

2023 lzo rst .I have 20k already And have had zero issues And get 25 city &28-31 on a trip.i drive it in sport mode with start stop off. Its been great so far.i keep the def full when it gets down to half i fill it back up

I got a 21 sierra with the LM2, and love it. Only issue I've had so far is the LONG CRANK no start issue. It's very common in the LM2, but it happens like once out of 500 starts. And dealer did update to ECM to help with the issue. I really like you "baby D" 😂 I wish I got the AT4 package, but only got the SLE with everything else maxxed out.

Good video! Mine had the upper glove box issue too and I use it for all the registration and insurance stuff so I wanted it to work. Little 220 sand paper to the male latches and it flies open like a wild banshee!…. Literally…😂

I've been averaging 30 mpg & my best in the 50 mile setting is 44 mpg. Little D is where it's at 💯 I use about one jug of DEF from Costco every 5000 miles which is every oil change. I did my first oil change even though it was free but I didn't want them messing with the computer. I've heard stories from Dodge guys that purchased those Eco Diesels new so I didn't want to take any chances. I also am running Amsoil oil & I do think it helped mpg a tad. I need to get me a Little C to go with my Little D like you have. 😂

We bought a 2024 little D. We Like that!! 7800 miles and no issues with oil. Shifting I had a boo boo I got confused and I bumped my rear bumper. Damn it. I don’t like the auto kill and start. I wish I could delete or pull a fuse. Overall me and the wife love our new truck.

Thanks man! Im here at dealership now, they are rushing to get it back to me asap. Hope it works fine after this.

Ive had my 21 lm2 for 2 years and I still get excited about it mpg. Its fun watching first timers experience it. I average 28.5 in the summer. Usually 26.5 in the winter. No oil consumption problems on mine. Def last me around 7500 miles, i put half a tank every 3000 miles or so. B&W make a speical hitch allows you to open your tailgate all the way.

My top glove box was the same, i just bought a roll of interior wireloom cloth tape and applied it to the latch release and it works great. The dealer is taking forever to get me touch up paint for a paint chip that is on the edge of the door when i bought the truck 4 months ago! So i came up with my own solution on that glove box rather than taking it to the dealer.

Great video

I need the Max tow for our 10K flat bed trailer. The thing you have to be careful of on all half tons is the payload. You normally will run out of payload before you run out of tow capacity. We have a max tow Ford F150 with the CoyoteV8, and it has performed well. However, we do enough driving that this Baby Max might be a better fit for our needs. In our part of the country, diesel is usually only 20 to 40 cents more per gallon than regular gas.

Good video, 1st time viewer

Great video boss! Subscribed so we can go on this journey together lol. I have a 2023 High Country, my only regret is not getting the navy interior. Otherwise I’ve got about 4k miles on it and no issues. Looking at starting my travel nursing so I hope it treats me well

I bought a 23 Denali with the LZ0 and I have roughly over 3,300 miles currently. Not unusual for me to squeeze 600 miles out of a tank (on a long trip that is). During my short daily commute to work and a little in between with errands, a tank of diesel will last me almost a month. Also let me know if you happen to check your oil, I heard these things come with an extra quart from the factory. They tend to burn a little bit in the first 20,000 miles from what I've researched. I checked mine at around 2,000-2,500 and it hasn't burned any. I'm thinking the climate you drive in could also be a factor as well.

Good content and great review..new sub here👍

I pick up a 6.2L Sierra AT4 on Monday for a 2 year lease. Just want to have fun for a little bit with that 6.2 but my plan is to get into a Duramax Sierra afterwards.

I'm sorry for your wife with the little "d". Good video, Looking at pulling the trigger and getting one this winter.

Good video. Thanks

Good video! Mine had the upper glove box issue too and I use it for all the registration and insurance stuff so I wanted it to work. Little 220 sand paper to the male latches and it flies open like a wild banshee!…. Literally…

Hold the top button on your tailgate for three seconds and it’ll lock it, preventing it from opening when you drop it down onto your hitch.

I have the same truck and I love it.

Man I thought long and hard about this motor but ultimately went gas as I put less then 10k miles a year on my vehicle so I figured the savings wouldn't be worth the additional headaches. Gotta say though, it's a smooth running, torquey and great sounding motor! Congrats.

nice review

Your little D is beautiful. Great video. I’m doing some research on the Duramax engine. I’m looking at buying a GMC Denali Ultimate 1500 truck next year.

Picked up my first diesel as well last month; 23 Silverado 1500 Baby Duramax, after a Tahoe 5.3 (swapped to a 6L) since 2005. Only have 800 miles, but love it. Power for days, and getting 29 mpg. $5.60/gallon for Top Tier at Costco here in Sacramento. And I did wonder what that foul odor was a couple times now, so now I know. The auto steps will be next. I quickly added the VanTrue Pro N4 dash cam, which has already caught some after hours shenanigans.

Drove about 12k miles on mine with at least 4K of towing 27’trailer at 5,000 lbs My thoughts..easy to service, I am not a huge fan of the plastic housed canister fuel filter. Oil change is a breeze. Take an extra jug or two of DEF when towing long distance. I get 26-28 mpg highway in my trailboss lzo. I would like to add airbags but so far it’s been a solid truck and starts great in the cold and warms up fairly quickly. The engine brake works but on a 3 liter engine you don’t get a whole lot of hold back, but it is sufficient for the truck in my opinion.

I'm going to be pulling the trigger in the spring on a chevy Silverado 3.0 Duramax can't wait . awesome trucks

Very good video. I am looking at getting a similar truck.

Love it

Great video and nice truck what turned me away from the at4 is they do not allow for the upgraded Max to 373 gears and no column shifter, however both of these are available on the elevation , that's one thing I hate about GMC their package options are all over the place and to get one thing you have to get 10 others you don't want and vice versa

I have the LZ0 in my 23 Silverado LT Z71. Instant torque is perfect for inclines off road and towing. DEF refills are a pain in arse.

I have the LZO BabyMAX. The fuel mileage is absolutely insane. 695 range on a tank of fuel. You have good video presentation but your nomenclature is off for sure. Our trucks have motors and engine. What voltage is your new Duramax? And the gas mileage of a LZO is zero. The LZO have amazing fuel mileage. Still never understood why they call motor oil and not engine oil. Maybe because transformers use oil. I just remember getting my ass busted at the Nashville Auto Diesel College calling a motet and engine. They are definitely different. A big toe is different than a thumb. Great Video. And an awesome vehicle GM has provided for us. Happy Holidays

In the 6.2L v8 they recommend premium fuel, so the comparison to gas should be comparing diesel vs premium if you're choosing between those two engines (for the Suburban, Yukon, etc). So if you're gonna be paying for premium as you should, then the prices are a lot more comparable. Likely gonna get a duramax on my next SUV purchase.

Can u imagine this truck as a plug in hybrid with a 50 mile battery only range! It would reduce diesel use by 90% for most people.

THANK YOU VERY MUCH NEW TO YOUR CHANNEL

Nice video and truck

Very nice! I have the 2023 Chevy Silverado High Country- I ordered a GMC Sierra just like yours, but then learned that I could get the Max Tow Package with the LZ0, but only in the High Country. By the way, the diesel engine is an LZ0 (LZzero), not an LZO (LZoh). Most people don’t realize the difference between letters and numbers.

Great truck! Could you share some insights on the maintenance and additional upkeep involved when switching from gas to diesel?

Was planning on getting this refresh 1500 but went with the new 2500 at4 liked the looks better and bed length. Once I put on a 3 inch cognito lift, wheels and tires she will be looking boss!

In Canada warranty only covers up to 60,000 km doesn’t matter if you have extended warranty or not. Doesn’t cover the emissions portion past 60,000km

My 2011 with the 6.2 recommends that you use premium, so I do and in North Georgia it is higher than diesel by $.30 a gallon or more. My truck is AWd and gets 16-17 at 75 mph. My dad just bought a 2024 Silverado with the LZ0 and I got 28.6 on the interstate stretch going 75-80 the whole time and 30.4 on a 4 lane highway at 60-70 or so. His truck went 290 miles and used less than half a tank of diesel. I figured the fuel cost of driving my wife's van to Florida and back with regular gas and 22-23 mpg and the diesel truck still has a lower fuel cost than the van. My dad is getting up in age, so the truck will outlast his ability to drive, so I will be his driver and may try to buy his truck in 3-4 years. The only problem is, I love my 2011 Sierra Denali. It fits me like a glove, and I have a custom stereo that is amazing, but that Bose system in the 2024 High Country has decent sound quality for long trips.

I've got 5000 miles on my lzo never burnes oil did my first oil change at 2000 now I'm running amsoil still have the original def that they filled it with .

just a quick FYI, you can lock out the secondary deploy of the tailgate . hold both buttons for 8 seconds . only the tailgate will deploy . Thanks

This is so funny, I’ve got the same exact black At4. The only thing I don’t like about my truck is every time I get out, it feels like I’m breaking the edge of my seat slowly. Everything else I absolutely love about my truck. I’m a general contractor, unfortunately I have to drive a lot. I got it in September. I already have over 9000 miles on it. One more thing I absolutely despise about it, is the auto stop. I already kind of formed a habit, every time I start it I also press the auto stop button. Fuel consumption is constantly 26-28.

Read the Owner's Manual (online full Owner's Manual not the quick start guide in glove box) on tailgate operation. I have a 2024 SLT trim and it can electrically lock out the upper tailgate so you can't accidentally hit the trailer hitch. My 2020 SLT did not have this feature.

I've got the LM2 in my 21'.... I get 24MPG average combined. It's by far the best motor out there for a halfton truck.

I was so close to getting the Silverado variant of this truck. But.... I do way to many short 1 mile trips I ended up with the 5.3 ltz. To many short trips on diesel was concerning being old school. But who knows how newer diesels react to this. But your right. I average 16 mpg City and Hwy. But a long road trip in that truck would be nice.

Take a heat gun heat locking latch front tip little bit. It will work flawless.

The oil burning will happen once you’re towing some distance and 5k Lbs on average. As for fuel cost Diesel here in South FLA is less then Premium gasoline as you use in the 6.2 motor. And when towing HWY you can fuel up at truck stops that accommodate towing and get yourself a Diesel fuel card that will save money at the pump. Now using DEF when towing on average above 5k lbs increases consumption. So if you’re regularly towing get yourself a 3/4 ton Diesel preferably less DEF and little better MPG’s when towing only. And if like me camping with an RV a few times year only. Then I can live easily with 3.0 Duramax. But would not want anything to do with a 6.2 that should be fueling with Premium gas only. Makes no sense unless you want to drive an Escalade and your budget doesn’t blink.. lol. I’m towing RV & Payload 6,200LBS for a big trip less weight for weekend trips. F150 2.7 9.5 MPG’s @ 64 mph.

Hold down the top button on the tailgate for about 10 seconds or more with the key in your possession. This will lock the top of the multipro tailgate.

nice pickup get a banks idash to monitor everything

The fuel prices where I live, it goes back and forth for which is more. Right now, gas is about 20 -30 cents more than diesel. Plus some places have Def at fuel pumps

BW makes a hitch that works with the multipro tailgate

Untrue about the tail gate feature. You need to get the B&W hitch. Make sure it's the model that says it's compatible with the pro tail gate. Game changer! It's cut in a way that allows you to use your tail gate as intended.

Been debating on getting the LZ0 instead of the 5.3…Such a hard choice

Got a 2023 Chevrolet LT with LZO in February this year have 37,000 with 0 issues average 28+ mpg but with new 6 in lift on 35s I still average around 24 mpg and tows 11,000 trailer with mini excavator like a monster and truck still says 15mpg amazing truck

B&W makes a hitch specifically for the multipro tailgate that does not hit when opened

Are those side steps after market? My 2024 AT4 came with Factory off-road version and I like the ones in this video. Can you provide info on them?

Quick ? Did your AT4 come with factory running boards? (Should have) or did you swap out with the boost running boards. I’d have to look at GMC configurator maybe running boards have been deleted from the package. Thanks

Egr being post emissions is HUGE…it’s taking “clean” air and no soot.

Great video! Any roof issues? I read on a google thread about 2023 & 2024 GMC trucks that have experienced cracks developing in the roofs. Dealers apparently are aware of problem and are initiating repairs to customers trucks. Dealers also inspecting current inventories to identify any issues prior to any new sale.

Fuel prices are the opposite where I live. Diesel is $1.05 cheaper than premium gas, which is what I use in my 6.2L. I have a 2024 3.0L on order so I'm expecting a significant reduction in the cost of fuel.