Chevy 1500 6.2L V8 (L87) Engine *Heavy Mechanic Review* | Top 3 Issues

I Review the Chevy/GMC 1500 6.2L V8 (L87) Engine as a heavy duty mechanic and go over the pros and cons of this big powerful V8 engine. I talk about the specs, horsepower, towing ability and fuel economy (MPG) of this engine. Finally I dive into the top 3 major issues (Dynamic Fuel Management) with this 6.2L engine if I was going to be buying it.
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I hope you guys are having a good weekend. I was lucky enough to get my hands on this 6.2L beast of an engine in the chevy/gmc 1500's. The engine does sound like big displacement V8 without a doubt and when you put your foot down there is alot of power there.
so the big things that I like about this engine as the power delivery, the fact that it is a simple push rod V8 and has good strong bottom end which is very classic from GM they know how to make a strong V8.
along with that power comes great towing ability, this engine can tow up to 13,300lbs but I imagine if this engine was strapped to a heavy duty truck it could tow well north of that. so my point was that this engine will tow so much easier for you and just make life better when towing.
now where the rubber meets the road is the known issues.
the first issues I my opinion is that this engine needs to run premium fuel and that just kind of rubs me the wrong way. I don't think GM should very be putting a performance based engine in a pick up truck. I think they should of lowered the compression ratio to allow for 87 fuel.
The second thing that is killing these engine is the Dynamic fuel management system or the cylinder de-activation technology in these engines. This is resulting in lifter and valve train failures like crazy and it's simply killing the reliability of these engines.
the third issues is Direct injection carbon build up. I've talked about this before but carbon can build up on the intake and intake valves resulting in loss of power, misfires and rough idling
the final thing that caught my eye was the variable displacement oil pump. now GM is not having issues with this but it just something that caught my eye and I thought I would talk about it.
Hope you guys liked the video!

[@mkennisebc]

The best truck videos online. You actually give an opinion and an expert analysis thank you

[@danaberman6929]

At 5000 miles, I added the Pulsar LT to my 2020 Trail Boss with the 6.2 engine. My engine runs on all 8 cylinders, all the time. No more dynamic fuel management cr@p, and I do not have to disengage the stop/start feature anymore. The truck has been perfect. Now have 32,100 miles on the odo. Change the oil every 5,000 miles with Mobile 1 full synthetic. I also put a oil catch can on. I run 93 oct fuel too. Great truck.

[@mikeswan1970]

If you dont mind, where did you source the hoses for the Oil Catch Can install, and which one did you buy?

[@danaberman6929]

@@mikeswan1970 I purchased the catch can over 3 years ago, so I am not sure where I got it. I did get one for my 2021 Camaro SS 1LE on Amazon. The kits come with all the hoses, clamps etc.

[@rolandthethompsongunner64]

Only 32k miles. Get back to us when it has 60k miles and the transmission starts taking a shit 😂

[@spankthemonkey3437]

Yo💩 aint blown up yet😮

[@danaberman6929]

@@spankthemonkey3437 I just traded my truck in last month. Had 34,412 miles. Not one issue. I wanted the new 2024 Chevy 2500 ZR2, but ended up getting a new 2023 Ram 2500 Power Wagon. The Chevy was almost 20K more after Ram discount. My Trail Boss was good to me, and I will never knock a Chevy Truck. I also own a 2021 Camaro SS 1LE, so I am still with Chevy.

[@Dale37]

Such an underrated channel. Hope your subscription numbers jump soon to help reflect how good your channel is.

[@HastaBanana]

Great video! I've owned my 2015 denali 6.2 since new, I enjoy driving it today just as much as the day I picked it up! ( I also have been running 94 ocatane since day one, 94 octane is just the highest available at the station I fill up at.

[@stevenflores5549]

I had an 18 Silverado with the 5.3. I had a handheld tuner I put on there. With the cylinder deactivation I was getting 18 mpg. With the tune and v8 all the time I was getting 21-22 regularly. They can absolutely optimize these motors and surpass the current mpg they get. It’s government bs making them do this.

[@gtrance3567]

I keep a catch can in mine and it’s m6, so I don’t need to worry about active fuel system messing with them lifters. Good video!

[@ryanchapman171]

Another fantastic video! You just keep bringing better and better information! Really helpful to the truck market!

[@mattr6462]

Enjoy your videos, would like to see a video of your top 3 powertrains in 1500 trucks (new and used).

[@davidbodnar18]

You’re absolutely correct about running 93 octane fuel/premium gasoline, I own a 2020 AT4 and now there’s a sticker on the gas door that states use premium gasoline only

[@binbuty]

My Yukon Denali 6.2L 2022 with 93.000 KLM Lifter Failure Oil use : 0W20 Fuel : 95 City Drive 90% Now its in dealer to replace lifters So , i will stay with this DFM Crap System till Complete 100.000 KLM(End of warranty) and i will Remove DFM with tuning ECU. Great Video .. Thanks 🙏🏼

[@jimm2442]

Excellent video filled with good information.

[@LindsayPeters987]

Another great video! Love the honest and thorough reviews. See ya in the next frickin video!

[@TheGettyAdventures]

Thank you Lindsay!

[@brentbird9503]

@@TheGettyAdventuresso if you were to buy any truck right now what truck would it be and why?

[@elliotkralj188]

Thanks for the great video review!! Any new thoughts about the 2024 6.2L V8 engine that still has the Dynamic Fuel Management technology? Muchas Gracias!!

[@slagdemon]

I have the same truck, but its a 2021 AT4 with the 6.2 and is white. I get 22-23 mpg on the highway, about 12-15 in town. 21k miles on it and it runs great.

[@rofin9541]

Excellent video. Spot on on everything

[@rondail5675]

Very nice looking truck. I wish there was NO AFM/DFM feature!!!

[@handlealreadytaken]

I've had the LT1 in my Corvette and LT4 in my Camaro and they were awesome engines. When it came to the truck, the mileage just wasn't there so went with the 3L Duramax.

[@stevetracy27]

If u drive with a light foot and the speed limit the 6.2 will get great fuel milage. After driving 1000 miles, 90 percent highway I have averages 21.5 mpg.

[@mikeswan1970]

WOw, what speed? I wonder with the 10 speed, there is probably a sweet spot for speed and MPG.

[@BigOlly83]

Can confirm. Was getting similar mileage on my 2022 Sierra 1500 Limited with the 6.2 until I installed my BDS 4” lift kit. MPG took a hit as I knew it would, but I also think the weather played a part in it because the temps started dropping where I live soon after that. Hoping to regain some of that mileage when the temps go up.

[@jimjim6803]

Yup! Only if the wife's behind the wheel.

[@craigo6808]

Catch can is a must on DI engines since the pcv system is mostly the culprit from throwing oil and gunk into the intake

[@memphis865]

You can have it retuned and have the cylinder deactivation cut off and you don’t have to worry about it. I know several people that have done it and has over 150-200k miles and one with almost 300k with original lifters. Most shops do it when they have to rebuild and replace them.

[@seeno1]

Yeah and then when you take it to the dealer they’re gonna know you were niggerin around with it and void the warranty

[@levital8432]

You mean return at the gm dealer? And they will deactivate it?

[@buickanddeere]

Adding a catch can in the PCV line . It reduces the amount of lube oil making its way into the backs of the intake valves . Less boot oul on the back of the intake valves is less carbon .

[@rag5283]

A review of the Ford 6.2 and changes to it over the years would be much appreciated. Any preventitive work to avoid valve spring failure??

[@sargenthp]

The Cylinder Deactivation is probably a stupid EPA requirement.

[@27dmarshall]

It is a CAFE thing. GM is building DFM engines to help meet those EPA requirements.

[@jt-vj4sl]

It is stupid GM engineering decision to achieve better fuel efficiency

[@jglide20]

I have a 2019 GMC with the 12,200lb. tow package. First think I do after starting is turn off the auto stop and then put it in sport mode. With the cruise set at 75 to 79 mph I can hit 23.9 mpg. I try to use no ethanol premium as much as possible. Oh, I was a Ford man for 53 years. No more Fords for me.

[@backroadscamaro541]

Get the afm delete module to plug in

[@rolandthethompsongunner64]

@@jglide20So in order to reach that meager mileage you have to burn more expensive gas 😂

[@mikebroom1866]

I've ran 87 since I bought mine, no pinging. I also run in L9 all the time, disables DFM, basically the same MPG. Also no injector squeaking. 20k in, 16.6mpg average.

[@Ryan-xv3kc]

Hi, what's L9?

[@anthonymacneil2279]

I own a 17 HC with the 6.2L, it's been a great engine so far, knock on wood. I've done the catch can, not sure what good it does, but it catches alot of crap. Been using Amsoil Signature and filter since new. As for MPG it averages between 10 to 12L/100kms, but I drive it easy. It's been tuned with Trifecta and had the AFM shut off from new, again, not sure if this helps. It's an overall fun truck to drive, especially in sport mode on the tune, it picks up insanely fast in this mode. The only down side is the 8 speed, it clunks and bangs into gear sometimes, as I'm sure your aware, but it does shift great and smooth with the tune. My next is a Duramax, you sold me on this. Great videos, your a pleasure to listen to with your knowledge. Cheers from Sydney

[@TheGettyAdventures]

Catch can helps to keep a lot of the oil from the intake which is what causes a lot of that carbon build up so it's a great thing to have. And having that AFM shut off is a great thing. It does seem like the pre 2019 were much less likely to have lifter failures which is a good thing for you. But I can only image putting a tune on one of these engines does, probably a pretty fun quick truck!

[@dennisdwagner2012]

You still have faulty lifters. Turning AFM off is only a bandaid.

[@rodjbosch]

My 15 6.2L had 3 lifter failures in 35k kms.....attributed to afm Along with horrible 8 speed and highway vibes it truly was a POS. If I ever buy another GM it would be the 3L diesel.

[@steveb4862]

My daughter and son in law have the 6.2 engine and they are broken down waiting on a new engine. They are on the third engine now and waiting behind 9 other trucks at the dealership with the same problem. These motors are shit. Don't buy them.

[@JordanOutdoors-o5n]

I have a brand new 2023 GMC AT4 and the way to stop that cylinder deactivation system is to put your truck in manual and put it and ninth gear and leave it like that and when you get on the highway, you can put it in 10. And the only issue I’ve have had with this truck out of 32,000 miles. Is the parking break system like there were something they had to replace

[@danlenhard2860]

Last truck’19 I got 17.8 mpg driving it nicely over the 3 years I owned it. Occasionally towing Ran 87 octane because stupidly I never knew better. If you race it around obvious mileage decreases

[@MrMachster]

I have an '18 Sierra Denali with 6.2 with over 75,000km, No issues and i get between 9 and 10 l/100km if i drive the speed limit. I pull a 23' enclosed trailer with 2000 lb load and i usually get better than 19 l/100km. I'd get that mileage looked at. I guess yours is an AT4 but 19 is still to high.

[@jasonzangrilli8558]

I run 91 octane non ethanol gas in my 6.2 and it runs great.

[@jerrychastain8567]

I ran strictly 87 octane in my 2013 Yukon Denali 6.2 and never had a problem. 15.6 mpg average. The lifter failed on cylinder 4 at 212k miles.

[@BearPapa49]

Very cool truck I would of considered this purchase but I changed up and went diesel 6.6 this past weekend with no regrets . I am towing in the near future with a travel trailer. And this 6.2 doesn’t have a 6 seater option . Nice truck still but I am won over on the diesel side .

[@TheGettyAdventures]

Fair enough! the L5P Duramax's are pretty stout engines. GM did a really nice job with those units!

[@ImNotHereToArgueFacts]

93 octane with that compression is a must imo. I'd like to open up the chamber/piston reliefs, delete the direct injection/VVT/DFM/HP pump and put a LS7 intake on it for port injection.

[@gr7523]

My 2020 6.2L AT4 runs on signature series 0w-20 Amsoil and fuel additives PI and upper cylinder cleaner. No issues and runs awesome with borla atak cat back with S&B CAI 🇺🇸🇺🇸🇺🇸 Dodge the father and RAM the daughter

[@jamesgarner307]

My son has 2018 6.2 8 speed ,has been dyno tuned,it runs great .no issues as of yet,it was tuned around 30,000 miles and has about 70,000.

[@nickfountain8420]

I've got a 2016 Chevy 6.2 8 speed. Bought it new with 6 miles on the odometer. Still have the AFM lifters in it. But did tune out the AFM with less than 15,000 miles on the truck. At 88,000, installed a edelbrock 2.3 liter supercharger. At 125,000 miles, started having some minor transmission issues. Slipping from time to time, hard downshifts, etc. Just replaced the transmission myself at 181,386 miles with a GM reman. Total cost for me installing the reman GM transmission that came with new torque converter and fluid was about $3,600-$3,700. Now feels like I'm driving a new truck again. Average 16 mpg alltogether. Only lost 1mpg with the addition of the supercharger. It used to average 17 mpg alltogether driving.

[@jamesgarner307]

@nickfountain8420 ,the trans with my son truck was the fluid being wrong from factory, had torque shuutter.changed fluid and put new torque converter in and fixed problem.the tune on the trans is golden on my sons., Sounds like you got that truck right and it must be a blast to drive.

[@tabishvanti2526]

One thing i can clarify, my 23 yukon Denali came with the DFM turned off. It is running strong with 76000 kilometers. I think cars from 22 are having the DFM turned off from factory which i think is a very good achievement.

[@callen7436]

Do you have to return it to the factory or can you go to the dealership?

[@krw3679]

Just a fantastic review. So many good points made. Gives one a lot to think about. I had my mind set on a GM 6.2 in a 1500 but after hearing all of this, well, I'm going to have to rethink this whole 6. 2 thing. Thank you very much...........

[@pbmartinfencing]

Guys use the range deactivating plug .. it goes o to the odb port d it works

[@alexroberts6206]

6.2 Chevy is a outstanding engine gonna go down as one of the best

[@ryanb8736]

6.6 is better.

[@alexroberts6206]

@@ryanb8736 10.9 is even betterer

[@Jdalio5]

Ok buddy you have stockholm syndrome....there's 1,000 videos of them blowing up at 60k. Edit and he just stated in the video massive amout of lifter failure plaguing this truck.

[@danstehler9062]

Do you happen to have link to the TSB for the updated lifters? Is it for trucks that are unsold and being shipped or existing trucks already on the road?

[@LCculater]

If the cylinder is not getting compression how is the oil ring manage oil ?Lexus 5.0 litre engine in the LC 500 has both direct and ported injection and it’s a master of an engine

[@dudestuff1557]

In your opinion, did the Ford or GM handle the weight better via the chassis?

[@LarryButler-kp3se]

My 1988 Chevy P22 step van is Air Force surplus with the Detroit Diesel 6.2, TM400 3-speed AT, simple naturally aspirated. I used it from 1994 to 2006 as a church organ service van then as a toy truck until now. I replaced a worn out ring gear and the poorly designed starter that caused it with this little geared starter from Japan from an elderly auto electric tech. After 25 years the auto glow plug gadget died and I upgraded it to a manual 300A starter relay to preheat it. It has 98000 miles and with a new vacuum pump shifts so smoothly you barely feel it. 3000 mile oil changes with Shell Rotella T4 to clean up diesel blowby and it uses no oil. 6.2 is a great engine in my $2000 truck...

[@FullaBullz]

As always great video! Yeah, this engine would be bulletproof if they got rid of those stupid collapsible lifters for DFM.

[@TheGettyAdventures]

I know it's sad to see. thankfully there are a ton of aftermarket tunes to basically delete the DFM

[@KZ-qs4rw]

And added port injection or a factory catch can.

[@FullaBullz]

@@KZ-qs4rw agree think pretty much all direct injected engines could benefit from a catch can. Aside from emptying them just don’t see a downside.

[@michaelpanacheese604]

Which one would you buy the 3.0 duramax or the big v8 6.2? Or 2.7 four banger?

[@StopMakingEveryoneDumb]

You can thank the EPA for this. They're pushing manufacturers to impossible standards. Engineers are striving to meet these and still deliver the power expected by a pickup truck. The long term solution is Americans voting for the right people.

[@matthewkim983]

Who do you think does the fuel mangement better ram or chevy for v8s?

[@jean-louishamid5285]

Somebody please bring this gentleman : - a Nissan TITAN or ARMADA with the 5.6 V8 - a Ford F150 with the basic 3.3 V6 - a Nissan Frontier 2.3 bi-Turbo diesel - a Mercedes G-320 CDI - a Kouign-amann Alex I can't wait to hear you compare this 6.2 to the 5.3 V8 👌

[@jza80king]

Would love to see the Titan VK56VD from 2017+

[@TheGettyAdventures]

I would love to review some Titan engines! I might approach the dealer tbh and see if they'll work with me.

[@haroldharold7113]

Would installing a borla exhaust and cold air intake help with the fuel consumption as well as increased power?

[@chalkdog3095]

I have the 5.3 without DFM because of the chip shortage. 20,000 miles in and it’s still eating highway averaging 19 mpg or more.

[@TheCarCrazyGuy]

the suspect lifters are still there

[@marksullivan3424]

My 2022 5.3 is the same. No DFM because of chip shortage. So all the guts are the same, but truck never deactivates cylinders. Time will tell if this makes a difference I did read on a forum with some GM Techs saying most of the lifter failures they see are all trucks that run the recommended oil change internal. I plan on changing my oil at the 50% mark so we’ll see if that makes a difference. Only 25000km on my truck so to early to tell

[@Getusom]

My 2019 will get 20 mpg on the highway if you go easy on it…..6.2 is very strong and I love it. Power at any speed….

[@jimmiebuckler997]

Averaging 21 mpg highway - 16 in the city. 2021 model. On 22s with Michelin all season tires.

[@hadleycontractor496]

Ok to run 87?

[@MrS22222]

No​@@hadleycontractor496

[@cavemanmoneyshot_6850]

This had me regretting my 2024 zr2 6.2 purchase. I hear it’s better now but there’s still lifter failures.

[@AirRyanTX]

HP Tuners is making good progress on GM's Global B ECM's; they have the L5P and the LT2 in the C8 able to be unlocked now. The 6.2L L87 is very similar to the LT2 in the C8 Corvette, and I believe it (L87) was the same long-block as the LT1, so these are not bad engines. Lot's Camaro and C7 Corvette running LT1's. AFM/DFM has always been about GM and never about the owner that makes the whole circle of life happen for the automakers. GM needs higher corporate average fuel economy (CAFE) ratings or they get dinged and pay subsidies/penalties to the government. This is why FCA is finally getting out of all their Hemi V8's; (they can't afford the penalties any longer.) While it would be awesome if you could get an L87 without DFM and just get regular LS/LT lifters, once your particular L87 vehicle is able to be tuned, you can do a delete and replace them all with very durable aftermarket lifters. I prefer the Johnson 2110's that GM puts in their COPO Camaro's. That said, while I have heard of a couple C8's needing new lifters, this seemed like it was more 2020/21 vehicles but who outside of GM knows for sure? Likely supplier QC issues during COVID, and less the actual design. The other beauty of these engines is in their relatively simple design. One camshaft, two-valves per cylinder. There are tons of aftermarket performance parts available for these LS/LT motors. I live a few miles away from Texas Speed and Performance and the LS/LT motors are their bread and butter. Pulling the heads is not a horrible job for those that know what they are doing. Get them ported and polished and beef up the valve springs while you're in there. I think everyone can agree that it's probably the most mod-friendly engine family in existence, no other engine family in GM or any other automaker has the following and aftermarket support that the GM LS/LT motors do. I have always been skeptical of the oil requirement for the 6.2 in the truck versus the Corvette. GM is adamant about 0w-20 in the trucks and they went from 5w-30 to a 0w-40 for the 6.2 in the C8 Corvette. I have come to the opinion that this is probably in large part just due to the way the motor runs in the truck versus the C8 or Camaro. My L87 doesn't go through the revs like the LT2 in my C8; I rarely even get it up to 4k at it's peak torque curve, especially with the 10 speed transmission. But as you said, if you put your foot in it, the truck just goes. This is a small-block V8 that has the torque of a big-block with the power levels of a modern V8., it's the best of both worlds. I wouldn't let the DFM/lifters scare you away from buying one of these vehicles, it has warranty for 5yrs/60k miles (should still be 100k miles but whatever, GM,) and once you get past that, you should have the ability to tune your L87 vehicle and either turn off electronically the DFM or preferably, physical remove the DFM lifters and disable it in the ECM. I might be tempted to swap my Silverado ZR2 6.2L for a new MY24 Silverado ZR2 LZ0 Duramax, but the 6.2L V8 probably has less overall maintenance given that you don't have a turbo or any of the diesel after treatment equipment. While I am sure as you mentioned in your review about the LZ0, that it sounds great (sort of like the straight 6 Cummins diesel in their 2500 trucks,) you won't ever get quite the NASCAR grumble and sounds that you can get out of a good exhaust on a GM 6.2L V8; (I prefer AWE for both the C8 and my ZR2 truck.)

[@huntermcqueen2556]

People have gotten quotes to remove the DFM components and replace them with regular stuff and the quotes around around $6k... and thats not including to tune needed. Its ridiculous.

[@calvinnguyen1364]

Disabling DFM electronically isn't enough. Removing the lifters is also not enough as you need to replace the cam with it. Where GM screwed up the 2nd most (After the crappy lifters), is their huge VVT cam gear... You have to drop the oil pan (which sucks on a 4wd model), remove the oil pump, remove the chain, and then replace the cam to a non-DOD cam because of the lack of space to just pull the cam gear like on older LS engines. Alternatively, you can pry the chain off the cam gear one link at a time (which is a pain in the ass for removal and installation)... but it's BS that this even needs to be done just to cam swap.

[@mkat740]

I have 6.2 in my suburban. I've been using the gm oil dexos only and spraying the intakes now and then. Also amsoil fuel cleaner and i'm using 93 only. it is powerful especially with the 10 speed I hope it runs good for a long time

[@ryanb8736]

Fuel cleaner will not clean the valves. So no point in using it.

[@mkat740]

that's what the container says on the fuel cleaner bottle@@ryanb8736

[@AllJSeries]

And the DOD is what surely always makes the lifters fail. But the l87’s I’ve seen spun main bearings

[@Jamesbaker123]

I wonder what the MPG would be without the fuel management tech in place? I would presume that even if its 0.3mpg better with the DFM then that is enough of a difference across GMs entire fleet to allow it to hit certain regulatory requirements?

[@tabishvanti2526]

As an owner of a 23 yukon denali. My 6.2 had its DFM turned off from factory. I have noticed that there is no major difference in the fuel economy. With DFM it would be around 21mpg city and without DFM it can come to around 20mpg.

[@AlaskaErik]

My 2016 5.3 with AFM had zero issues in the 62K miles I owned it. My 2019 6.2 has had zero issues so far and it's got almost 42k miles on it. I only run premium fuel in it and I only use Mobil 1 0W-20 oil and Mobil 1 oil filters. I've never gotten anywhere near 12 mpg. In mostly city driving I get 16-17 mpg. My best highway mileage was 25.9 mpg over a distance of 390.7 miles, which was confirmed with a hand calculation. And I have the max trailering package with the 3.42 rear end. The truck is totally stock and there have been no programming modules used. It was built in July 2019 in the Mexican plant and I bought it brand new in September 2019.

[@jethrojeffrey]

you've been lucky.

[@ElJefeTony]

I've had similar experience. I bought three at the same time in 2019 for work. 2 were 5.3L's and mine was a 6.2L. I consistently get 18-20 mpg with a best of over 24 mpg in the 6.2L and have had ZERO issues. The 5.3L consistently get 15-17 mpg. One of the 5.3L has already had a new engine and now needs injectors (over 200K miles already). Again, ZERO issues with the 6.2L. I run premium fuel only, but will also tow my 9,000+ lb travel trailer over 400 miles on weekends ( I have max towing package and airbags) and have over 104K miles on it currently.

[@jt-vj4sl]

It is statistic after all. Just like typical GM 2.4L Ecotec car engine has timing chain fails ~70k miles. In our families, two same engines did that in 65 k miles. No more GM product for us.

[@jameskwak3198]

Have a 2015 high country with 6.2 102k miles average 19 plus mixed driving summer the worst I've seen is when Temps drop to zero or below and im still 16.5 mpg that's with hauling over 500lbs of tools that are always on board..highly recommend the 6.2

[@mdoneg]

Would you get the 6.2L again or the new generation 3.0 L duramax?

[@DouglassTaber12]

I just had the main bearings spun on my 2022 Sierra 1500 with 6.2L with only 36k miles. The GM Mechanics are doing a rebuild; but I wan worried - will the engine life be reduced from having circulated the metal from the spun bearings?

[@CJColvin]

Did GM solved the cylinder deactivation issue they were having with the 6.2L Ecotec V8?

[@hadleycontractor496]

Regarding the higher octane fuel, the standard gas motor has a compression ratio of 11 to 1 6.2 has 11.5 to one. It is a very small difference or am I incorrect Isit really that tight of a tolerance on the regular engine for the fuel ability. I feel like it’s less than a 4% increase in compression and if you had any sort of impurity in your regular gas in the other motor, it would be having problems. I would think you would need like a 14 to one compression ratio for it to be a problem not running high test.

[@jonp3356]

May 09 Tahoe 5.3 still running strong but I am curious about the Nissan Titan

[@jakjakjakjakjak]

We got trapped on the top of a mountain in a snow storm the first year i owned my at4 in 2020. High winds that were blowing semis over. We had my 1 year old. We had to spend more than a day waiting for the storm to pass. The cylinder deactivation let us have over 48 hours of fuel on like 60% of a tank. It burn fuel at like a 1/3 of normal Idling while keeping us warm. Thank for for it. We were in real danger. A great technology..

[@Tsl4Lf]

So if you aren't in this same exact situation which is 99% of tge restbof us don't buy this truck.

[@jairo.romeroo]

Which are the more reliable engine options?

[@jponyboyace]

Getting rid of the DFM is and if you place trans in a M1 mode you can actually delete DFM each time you drive….place in M9. Leave while driving.

[@danielsweeney-me7wm]

Does this mean driving in L9?

[@jonsager7436]

L9

[@realpatriot5896]

Can you use a fuel additive instead of 97-octane gas to get a higher octane fuel?

[@jordangiesbrecht05]

love ur vids! quick question, if u had to choose between the 6.2 v8 and the 3.0l lz0 which one would you go with?

[@TheGettyAdventures]

me personally, probably the 3L

[@tonycolca2241]

400 hp and 5000 lbs 12 mpg is fantastic. You cannot argue with physics.

[@kevinhoffman8214]

I drove a 3500 in 82 that had the 454 and got 10 mpg avg including towing 2 cars so 12 is not that great

[@gregparrott]

The higher octane recommendation is altitude dependent. On older, high compression V-8's, I would observe pinging (knock) under load at sea level, but not at altitude, where the air can be ~15% less dense. The newer engines address knock by retarding the timing. Some do so in 2 degree increments, up to ~10+ degrees. Retarding the timing can dramatically reduce horsepower and fuel economy. It would be very useful if the engine WARNED the driver when its sensors detected knocking and elected to retard timing. The driver could then learn what octane they needed based on their load, air temperature, and altitude, and accordingly decide which fuel is best.

[@hochhaul]

@user-hw9lm1lf9n Do F-150 owners with the 3.5 ecoboost do that? Ford tells them they should in the owners manual, but the vast majority don't. This 6.2 has knock sensors and a cam phaser for a reason. The 6.2 is 93 recommended but only recommended. Just like truck siwth the 3.5 Ecoboost. And soon the Hurricane I6 Rams.

[@jaxjax5322]

My denali 2022 its broke the line hone o bearings are having issues on the dealer where 24 trucks broke the same

[@lyleswavel320]

Does the 6.6 need 93 octane to perform long term, like 300,000 miles

[@BikeisDusty]

I looked and could not find a report of actual % engine failure/issues for the 6.2/5.3L. Is it actually 5% or 50%+? Selling nearly 1M trucks a year, GM could not manage this being above 3%. Have you found actual data on the issue? I think the GMC looks best, would like it with a 6.2L, but not sure I want to sign up to Cam and tune the engine at somepoint in its life.

[@realpatriot5896]

From what I understand according to another channel the problems with the AFM/DFM are less than 1% of the trucks made with it. Not sure how accurate that is. That being said I turned mine off after it started pumping oil into the four of my cylinders when they were on in V-8 mode and was burning oil and misfiring. I turned it off at 86,000 miles and never had another issue. The truck has over 198,000 on it now and still runs really good. It is a 2012 with the 5.3 and 6L80. If and when I get another one I will turn it off immediately.

[@joshuaatkinson5810]

I used to be a huge GM fan but this problem has bit me twice. Lots of better options on the market.

[@TheGettyAdventures]

I owned 2 GM trucks in the past. loved them. but at the moment their V8's are not as reliable as other options

[@27dmarshall]

6.6L L8T (2500/3500HD): More of an old school GM push rod V8. But with many Gen5 updates. 1. Runs great on 87 octane (10.8:1 compression). 2. No DFM 3. Iron Block 4. Forged crank

[@ridynh7923]

I got bit once. Had no knowledge of this issue prior to purchasing. Garbage truck, garbage company.

[@ericj810]

Whats replacing the 5.3? The new twin turbo 6.0. The long stroke dual twin volute v8 engine of the 2026 silverado will pump out a dizzy 780hp and a neck jerking 1300lbs of torque coming in at 1600 rpms.

[@user-hh7no3pf2w]

I work at a GM garage and I've seen a couple of 6.6 gas trucks have lifter problems. Nothing like the other two engines though.

[@TheGettyAdventures]

Fair enough, I wonder what would be causing lifter issues on the 6.6? or is just the odd bad lifter maybe due to chance when the engines are being built?

[@user-hh7no3pf2w]

@@TheGettyAdventures I would like to know myself. If I had to guess I would say cheap material on the lifter and camshaft and/or oiling problem. It always seems to be one lifter and cam lobe.

[@Billybob50119]

@@user-hh7no3pf2w please reference your source. Never heard of a 6.6 gasser with bad cams and lifters. Maybe you are confused and mean the 7.3 ford gasser? Those are delaminating cams and lifters like crazy

[@freedomisntfree_44]

@@Billybob50119nah he means gm trucks 😂

[@jponyboyace]

Ok if you place trans in m9 the DFM. is by passed…works like a normal 8 cyl….check out…

[@ericsivilla4091]

What is more reliable a 6.2 chevy, a 5.0 Ford, or a hemi 6.4 ?

[@jza80king]

Isn't there aftermarket support for eliminating the DFM? Probably would void the warranty but I'm not positive. Also definitely recommend a catch can and probably to seafoam the top end of this engine every 3-6 months depending on your driving, to eliminate the carbon buildup.

[@TheGettyAdventures]

Yes there are tons of aftermarket supports thankfully, but I would highly suspect it would void your warranty.

[@ridynh7923]

Blows my mind, that people would by a $80k truck with known engine issue, but be “ok” with it… because there may be an after market system to deactivate a system that GM engineers built into the truck, with knowledge that it’s a total failure. WHAT THE H***! Does no one else see how crazy that sounds? Cannot wrap my head around that. What else is soooo great about the truck, that it’s worth risking your hard earned dollars, on this pile of crap, with known engine issues.

[@lulop022882]

@@ridynh7923 I feel the exact same way. If I remember correctly this guy had another video about the turbo 2.7 was saying that’s why you have warranty on the power train. Making it seem like it’s so easy to get warranty work done on the truck and that’s if GM has parts 🙄🙄 The negative nowadays the public is no longer guaranteed a reliable half ton pickup at a low price. Ford just started cyclinder deactivation on their 5.0. Not sure what Ram has but the half ton Ram Isn’t know for durability either not mention their current outrageous prices.

[@KALLLIE98]

I have a 2023 RST w/6.2l w/NHT towing package and tow a 8200# travel trailer 2-3 times a month. Love my truck...but.. 14,000 miles on it and it spun a rod bearing so i took it to a dealer where a friend works as a mechanic(20+ years). After getting the engine replaced i asked him what the deal was and he said that they believe they are having oiling issues as he has done (5) 6.2l replacements in the last few months, some as low as 10,000 miles. Makes me wonder if it is due to the variable volume/pressure oil pump?

[@robqwertyuipp8750]

My cousin is also a GM mechanic, he has seen quite a few of these issues in 2021 and 2022 Covid built trucks . Thats a costly mistake on GM's part!!

[@WBOS72]

Shopping for a truck, thinkijng anotger ram hemi classic. Great video Alex.

[@TheGettyAdventures]

Honestly you cannot go wrong with a RAM classic. you can't get a better deal. the 4th gen rams are a little outdated but the drivelines are basically identical to the new fifth gens. and the 5.7's hemis are pretty solid engines.

[@WBOS72]

@@TheGettyAdventures thank you. I had a 17, traded it off for a jk. Miss it, so will get another. Have you done a Ram 1500 classic?

[@user-uc9px1iu2m]

I have the 5.3, and with the engine management system, at a consistent 75mph, I average 33 mpg! In town, I average around 18. The only mods I’ve done are install a K+ N air filter in the stock box, and run Amsoil 0-20 oil

[@charlesludwig9173]

You drive at 75 mph in town? My average speed in town is about 20 mph and I get 15-17 mph. On highway at about 50 mph I get 19-22 mpg.

[@brendanchapman9270]

No way. I have a equinox AWD 2.0t and get 31 if I'm lucky sticker says 29 usually get better on hw 75mph!

[@jonp3356]

What do you think of the Nissan Titan 5.6 endurance??

[@chrisreibold1634]

Is this same setup in the 2023-24 camaro?

[@tkobvious]

My '22 6.2 has this annoying light squeak at idle, very low load while cruising you hear it faintly, and you always hear it when slowing down to a stop for a few seconds. Auto stop/start has very similar squeak, very light but it's there. I've found a rather annoying Bulletin: 22-NA-218 that acknowledges what I'm talking about but states that it's totally normal and the dealer shouldn't compare to another similar vehicle as the sound differs from engine to engine. Clearly some don't make as loud of a squeak, which means surely it can be quieted down? Anyone else found a fix?

[@colbiecolbie6979]

There needs to be a way to delete the cylinder deactivation

[@c21meister]

That’s a sexy truck what year is this one?

[@Jbennyho]

With traffic as bad as it is in places like California, all vehicles will be subjected to extensive idle time. Another reason auto start-stop and variable oil pressure is not viable. Question: How does the variable pressure oil pump improve gas mileage?

[@wally7856]

Less parasitic loss.

[@gdesrosier1]

22mpg @65mph with my 2021 6.2l. 17k miles no issues.

[@Jdalio5]

Your happy it survived 17k lol thats classic stockholm syndrome. They blow up at 60k...I'd start saving for it now.

[@THECARSHOWFEED]

2019 gmc sierra 6.2L 125k miles no issues

[@hadleycontractor496]

Have you always done premium or can I run 87?

[@jw8578]

GM is investing almost a billion dollars into research and development of a new v8. That tells us something. The 3.0 diesel is the best option for now.

[@gustavosaenz3785]

I have a 3.0 LZO, I saw your video on the small diesel. You told me of the rear belt replace it at 100,000-150,000 Oil pump with 150,000-200,000 I have a 2024 AT4 I really like my truck, to know that the rear facing due to Europe design. That hurts. I don’t have that kind of money to spend later. I’m asking does the 6.6 duramax have the same issue.

[@Abbittibbi]

I have(had) this engine in my 2019 silverado, it cost me 2 engine(1 on warranty before 2000KM) due to AFM(active fuel management) module lifter failure and the other at 61 000KM, less than 5 month after 5 years warranty expire. I had to bring it back to exchange it for 3500HD(gas) 6.6 and a 125 000$ bill....less my equity of course. GM knowns about this, there is class action lawsuit coming on them from Michigan.

[@BetseyKarnes]

I have a AT4 2019 5.3 with 83,000 miles, just replaced the lifters, cam shaft, and now they are replacing the torque converter, wondering if the truck will be good now with all of that replaced? I'm thinking of having the dealership buy it back and buy a 6.2 but if they have lifter issues also maybe I shouldn't

[@TheGettyAdventures]

our receptionist at work has a 2022 5.3L and they have put 2 sets of lifters in it already. I told her to sell the truck. the 6.2L are suffering from the same issues. you might not be a ford guy, but if you want a decent V8 right now, the 5L from ford is a very solid option.

[@TX24k]

I just ordered the Pulsar LT for my 2019 sierra 5.3 and ill be shutting off the auto start/stop and the cylinder deactivation

[@avioncamper]

Hello from North Carolina. I would not mind using premium fuel with the high compression ratio, The DFM reminds me too much of Cadillac's 1981 disaster, the V8-6-4 modular displacement engine. My father had one and so did I. GM seems bad at pushing technology that is not ready for prime time. You being so young, missed out on other GM greats such as the Olds 5.7 Diesel, Cadillac HT4100 v8. I wonder which 1/2 ton you like the most, this truck or the Duramax? What the heck is a variable displacement oil pump? Enjoy your channel.

[@Twystedwhizard]

I think he made a 4cyl in the 70s that had hypereutectic aluminum cylinders as part of the block to save money on installing iron liners. Aluminum cylinder walls with iron compression rings. You do the math.

[@Khood8145]

I have a 2014 Denali half ton with the 6.2L bought it 2 years old and 66,000km on it and I still run it with 235,000km. I have haven’t done shit to it. It’s a fucking BEAUTY.!!!!! Now I just got a 2023 AT4 half ton and it’s sweet. Love the 6.2L. ❤

[@robertb.4202]

How has the AT4 been so far? I'm thinking about getting one.

[@colbiecolbie6979]

Catch cans are important for direct injection

[@r.c.jewell4164]

I put a catch can on 17’ 5.3l and now has 97,000km on it. The catch can was installed at 1,300km and now have about 6-7 litres of gas/moister from the catch can and that doesn’t build up carbon on the valves. To this day it runs as smooth as new👍

[@razlan5402]

I have worked on way too many hemi engines with lifter problems tick tick tick. As a tech i see more hemi engines with problems then Ford or GMC Engine working in the Oil Field in Harsh conditions.

[@dustin3700]

Not sure why gm didn’t put the Ls7 in trucks in the vettes you had over 500hp and 32 mpg on the highway and it’s a 7.0 liter engine.

[@jordangiesbrecht05]

im not sure bout the 6.2l but in the 22 and newer 5.3l v8 u can actually order them without the dfm from the factory

[@TheGettyAdventures]

like order them without DFM?

[@jordangiesbrecht05]

ya sorry that's wat I meant🙈 I mistyped it

[@rickyr3610]

Hey. On the topic of fuel …which octane do you use in your hemi ?

[@big_oucne3536]

I know that ram themselves recommend 89 (mid grade) but using 87 wouldn’t be bad for it, Ive used both and it just allows it to run at max efficiency therefore more power, not a crazy amount, so up to you, slightly more power or fuel cost.