Honest owner review 2023 GMC Sierra1500 AT4 6.2l v8 gasoline

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truck specs
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truck 2023 gmc sierra 1500 AT4 crew cab 4x4 OFF ROAD
6.2l v8 10 speed transmission
420 hp 460 tq
chevrolet v8 engine is a monster,
truck specs
Engine Type Gas
Transmission 10-speed shiftable automatic
Drive Type Four wheel drive
Cylinders V8
Total Seating 5
Basic Warranty 3 yr./ 36,000 mi.
Fuel & MPG
Fuel & MPG
Fuel type Premium unleaded (recommended)
EPA city/highway MPG 14/18 MPG
EPA combined MPG 16 MPG
Range in miles (city/hwy) 336.0/432.0 mi.
Fuel tank capacity 24.0 gal.
Engine
Engine
Base engine size 6.2 L
Cylinders V8
Base engine type Gas
Horsepower 420 hp @ 5,600 rpm
Torque 460 lb-ft @ 4,100 rpm
Valves 16
Cam type Overhead valves (OHV)
Valve timing Variable
Direct injection yes
Cylinder deactivation yes
Towing & Hauling
Towing & Hauling
Max Towing Capacity 8,900 lbs.
Max Payload Capacity 1,440 lbs.
Drivetrain
Drivetrain
Transmission 10-speed shiftable automatic
Drive type Four wheel drive
On demand 4WD yes
Electronic hi-lo gear selection yes
Automatic locking hubs yes
Front and rear locking differential yes
Descent control yes
GM PERFORMANCE EXHAUST by bola touring .
by chevrolet
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[@Tony-Witt]

Hey there , loving my 2022 Silverado 6.2 LTZ. Average gas mileage is 18.5 in the warmer weather. Your right about the power. She pulls hard no matter what speed you are going. 👍

[@Tony-Witt]

I run premium non ethanol gas and keep my oil clean and tire pressure to spec.

[@johnpotter4210]

My Denali doesn’t have one squeak or rattle. There’s not much cheap plastic in the interior either. Idk what this guys taking about. The dash feels like it was carved out of a solid piece of granite.

[@Lloydski]

Still running good getting a 2023 next week

[@watchmanexpert]

I should be get the 3.0 28mpg is hard to beat

[@momummy4700]

3.0 L duramax get me 32 mpg highway

[@bdogjr7779]

No more Sash392 eh《☆》Nice review my Friend👍🏾😎☮

[@Garage28_28]

I might go back to my old name

[@WOLF-qq2cn]

I have a 2022 chevy Silverado trail boss 6.2 it's a great truck.

[@jivangill]

How is the 6.2 engine bro

[@illegalfreakTV]

Less than 10MPG wow 😮

[@jeremyhinkle6434]

Anyone on here considering an AT4 purchase, run for your life. I have 2022 AT4 w/ 6.2L and 10 Spd transmission. Had trans replacement at 20k and now truck is in the shop getting engine replacement for engine (main bearing failure). Truck has been maintained by GM dealer. Junk.

[@bigmando78]

Damn, I have 21 6.2 at4 and I've (knock on wood) had no problems

[@Lloydski]

@@bigmando78 how many miles on it now. im getting one next week.

[@bigmando78]

@@Lloydski 35k

[@johnappleseed9290]

My neighbors also is having issues with his AT4X at 20k miles wtf?! His is over consuming of oil and electronic issues, didn’t really go into detail he was Pissed

[@one-n-only4393]

For whatever reason it appears that the 2023 AT4’s w/ the 6.2L are experiencing the least amount of issues. This fact has been echoed by the various GM Service Managers & Master Techs as well. The 2021 & 2022 models are seemingly hit or miss. Go figure..!

[@Bill_W_N7]

Thank you for your honest review of your AT4! I've got a 2018 SLT and have been considering upgrading to the AT4. If you don't mind me asking, how is the road noise when you are driving open road? My 2018 is pretty noisy. Just wondering if GMC made any improvements in that area.

[@andrewgarcia605]

I have an AT4 and the road noise is not loud at all in my opinion. Even with the off road tires the ride is smooth.

[@Garage28_28]

ride nice, but no where good as my 2020 ram Laramie the RAM trucks are the best road trucks.

[@Bill_W_N7]

@@andrewgarcia605 Thanks for the info. I went to the lot and drove a '23 AT4 today and agree, it was not bad at all... especially compared to my '18 SLT. I placed an order for a '24 AT4 while there. Hopefully I won't have a crazy wait time for it.

[@Bill_W_N7]

@@Garage28_28 Thanks for your reply and again for your video! It was super helpful. I ordered a '24 AT4 today and am looking forward to "hopefully" getting it soon.

[@francinebond6602]

I have 19,000 kms only an only an abs brake sensor.

[@88Petry]

19k and already an ABS sensor? That's bad bruh, not good.

[@tacopapii]

What’s the gas range on a full gas tank?

[@Garage28_28]

320

[@dopeboyp3487]

@@Garage28_28Wow, smh. This is the sole reason I went with the 3.0 LZ0 in my ‘24 AT4. My range is about 600 miles per tank. I’m also in Southeast Michigan. Nice truck man!

[@wdnpushpole]

I got a 2022 at4 black widow. Had 3 months now got 10k on it averaging 13.1 mpg sitting on 33’s. That’s at 80mph. Only complaint is that it’s a scratch magnet and they limit you to 98mph

[@Garage28_28]

Mine goes up to 111

[@2cthetruth]

Why you people pay what you do for the crap they are handing us... I have no idea.

[@Jpbone0321]

I have the same truck. Plan on putting 35s on it when the tires wear out. It is definitely a scratch magnet. I’m having it ceramic coated to help with the cleaning.

[@markwhite6719]

At4 beautiful