Best Diesel Truck! 2020 GMC Sierra AT4 vs Ram Rebel Diesel 0-60 MPH Buddy Review 

The tailgate scene was great.😂😂😂

I bought my 3L AT4 2 weeks ago. Hitting the 24 mpg combined, as advertised. Getting well over 500 miles per tank, nearly 550. Love the truck!

I own one of those AT4 diesels, i drove it from Jacksonville, FL up to the mountains of North Carolina and averaged 27.8 mpg and got 575 miles out of 1 tank of fuel. That was taking backroads, through small towns and up curvy mountain roads!

This is by far my favorite video guys. The humor was on point, the realism of the everyday issues, and having an interior party while critiquing was perfect. Love you guys and we need more like this. Best team on RU-vid and y’all need more subscribers! Get on it people💯

This is the best format you have ever used for a review. You finally get to voice some criticisms of a vehicle which you rarely do in other reviews without candy coating them. Where I live is almost sea level and there are no substantial hills around. So you towing tests and acceleration tests are almost irrelevant since your normal tests penalize the NA engines too much. With this comparative format you covered everything in a relative way which is much more informative even though its in a lighthearted manner. This is the only reason why I'll stay subscribed. More buddy reviews please.

Love this style of review were its just you guys conversing back and forth and taking rib shots at each other. Keep it up

Thanks guys, I’ll keep my ‘98 Dodge 2500, 4x4, 5.9 beast. No frills, 280k miles. Used it to rescue stranded folks during both Harvey and Tax day floods in the Houston area. Has a 36’ goose neck stock trailer attached 60% of the time.

Have loved the buddy reviews for a long time. Breaks it down to make the comparison no nonsense. Keep em’ coming!!

"Oh Wow.. OK" says it all lol about Nathan's barn door comment... priceless!! You guys together really hit it out of the ball park with comedy and an element of buddy slap stick, keep it up..

This is about the most entertaining 33 minutes I have spent in a long time. I just bought a 2020 ecodiesel Rebel. I don't have the barn door tail gate or the sunroof but I really like the truck. Loved this video!

Hot tip: If your call girl's name is, "Snarf", you might want to look into expanding your prospects...

The tail gate scene was beyond hilarious 😂! TFL Truck and a cup of coffee is the perfect way to start the day. Keep those videos coming!

The format was great! I liked watching you guys interact "raw".

I was so glad to hear Nathan say the screen in the AT-4 was not ridiculously large like we were going to see. The review of the interior by both Nathan and Roman was realistic! Well done fellas! Thanks TFL! Fun video.

Just bought a 2020 GMC Denali with the 3.0 traded up from a Colorado with the 2.8. Man this truck is a beast, the engine trans combo is spot on. I wanted the AT4 but couldn't find one with the 3.0

I have to say I do love the raw videos that you put out. Videos like this one seem more real and honest. Keep up the honest and raw videos.

You guys are a riot ... there's entertainment value in this video, worth watching for that ... not to mention the informative aspect.

I drove the GMC AT4 3.0L Duramax and felt it had good power off idle,, I laid wheel out of the Dealer Lot on accident trying to get into traffic, not overly quick to 60 as the fellas noted but the truck seem to effortlessly drive along at any speed. I never felt any turbo lag just ton's of torque all the time. Really liked it.

LOVED that tailgate scene, something I would have only expected on TFLnow but I love that you left it in there for some good comedy!

really like these off the cuff type of videos cause they are honest and down to earth and feel more real. Loved the Roman missing the bed step part was comedic gold as he was trying to play it off LOL.

One of your best videos ever. Can't wait to see these engines on the Ike.

Love the GMC AT4. Thanks for sharing and reviewing both of these trucks.

I bought the Gen II Ecodiesel Grand Cherokee Ltd in 2015 and since were Seniors and only drive it on trips, we get up to 32mpg in it. I’m happy with it. It’s towing is fantastic as well.

Excellent review. Excellent team. This review “format” with the team was by far your best and should be your new norm. I really enjoyed it.

I like the “RAW” review... it shows you guys really having fun doing your job.. 👍🏽

As always a great review! I would have liked to see payload and towing numbers but I am sure that will be in an upcoming review. Keep them coming!

I have the GMC with the multi Pro tailgate. I thought it was a gimmick when I bought it. But now I am totally in love with it. It is so convenient and easy to use! It has so many uses. Neither Ram nore Ford are even come close. The only down fall is not being able to use it when you have a hitch in or towing which is a bummer. But over all I am very pleased with it.

I modernized my Yukon today for offroad. Got RED recovery hooks for improved offroad/crawling prowess! I am unstoppable!

Very good review guys, love the father son stuff too but was awesome to have the good ole boys together!

I do like this video format. - Based on the content in this video, I'd choose the GMC over the Ram. However, I think the Ram tailgate is a little better concept, but I have some gripes. The Multi-pro gate seems overly complicated, and can not be used to it's fullest if there's a hitch/trailer on the truck.

Your camera work sometimes made think I was drunk and near passing out. What a relief it was when the focus eventually returned.

This was probably the most enjoyable review from all of you guys. All your attitudes and the fun you guys were having joking with one another was awsome to watch. Thank u guys for some good morning laughs 😆😂. And boy that at4 tailgate scene was hilarious 😂

the tailgate scene was so realistic ...this is exactly what would happen with my family when we are together

Love the buddy reviews! Hilarious!

I like the free flowing reviews rather than the scripted, way more fun to watch. Great vid guys

The power wars between these new diesel trucks are insane, I love it! Great review as always!

You always have to be different don’t you 😂. Thank you guys for amazing work

Loved the tailgate “keystone cops” comedy show

So I finally test drove a 2021 Limited ecodiesel after binging on so many RU-vids. The good news, the fit and finish both inside and out as well as the quiet comfortable ride... nailed it. The motor, let's say I was underwhelmed. Just not enough low-end torque off the mark; it felt sluggish and underpowered out of the gate. I hopped in a Rebel 5.7 hemi and loved the responsiveness of that engine AND the interior was as comfortable and quite a ride as the limited despite the off-road tires. My inner nerd came out as I used a decibel meter app to measure interior noise at hi-way speed... both vehicles measured the same at 65-66 dB; you could hear a subtle whir from the OR tires, but it did not ping the dB meter. Very quiet, comfy ride!!

Andre does a nice job of keeping things organized and informative

NATHAN! My man. I agree with you 95% . I've had both an Elocker on my F150 FX4 and a G80 on my Trail boss. I found the Elocker next to useless in most offroad situations. I live in BC there isn't much slick rock to crawl on. But lots of tight trails where a fully locked axle sucks! The G80 being Automatic is always there. Now I'd rather a Torsen system LSD, but the G80 will do.

What a great and fun video to enjoy over breakfast. I will admit, that I have been looking for that color rebel, without airbags and without the pano roof. In the end, I believe the rebel will cost less money to own and operate than the G. M. Factor in the transmission and drive train maintenance and durability. I just cannot get on board with a rear mounted timing set up, nor the oil pump design on the i6.

Im with Nathan! Love this RAW format. Keep em coming!

My 2020 Ram Ecodiesel 4x4 did 708 miles on one tank of highway driving. @75mph in Florida. 26 gallon tank.

was looking at the ram as i have a 2014 Limited Cummins and i ended up getting a fully loaded AT4, loved the offroad and styling, but mostly liked the larger 6.7 box where the rebel is only in a pointless to real truck 5.5 box. i opted for the 10 speed 6.2L had to get out of the diesel due to taking so long to warm up in -40 and DPF non stop issues. AT4 is probably the best half ton truck i've even used.. its very well equipped and has lots of neat little tech things many others dont. i have all safety pkg and tech pkg in mine.. has more cameras than the Ram and i have a camera for my trailer and TPMS for my trailer also!! first GMC in over 10 years for me and i'm very happy with it. i nearly bought the raptor actually but glad i went with the AT4 std box.

Could you at least have reported the MPG computer reading instead of just reading the EPA rating?

Love these videos more looser and more light hearted humor. Your reviews always seem to be very laid back and fun as to why I've been watching since juke vs xterra snow drive test up lick skillet road. These are fun tests and enjoy the live shows either walk around or behind the desk shows. But for price you could get an LTZ HD, or Ram HD limited as well with rebates tossed in. That's alarming these prices are sky rocketing as much as they are. 10 year financing coming soon .

Maybe you guys can pool some money together for an aux. camera light for those interior shots! Love seeing the three of you guys together, it really makes the video fun!

I have absolutely no problem with the interior of the GMC. Nice to see they still have a column shiftier, I think it's still the best option for a pick up truck. I don't mind Fords console shifter, but hate the RAM knob or the push buttons on the new Yukon/Hoe. I also like the size of the GMs screen. I personally am not interested in having the huge tablet screen that Ram has. I appreciate it's an option for those who like it though.

I liked the review. It was nice that this wasn't filtered. The tailgate scene was too much! I laughed even harder when the big "Giraffe" missed the foothold in the bumper, of the GMC. Then, while I was laughing, I thought, "What am I laughing about, if I did that, I would have fell on the ground." LOL. To me, the Ram tailgate is a joke. It even shuts flimsy. The GMC step tailgate, is the ticket. I am older, now, and my knees really talk to me. Now that I think about it, watching those three reminded me of watching an old clip of the "3 Stooges!" It would have been funnier if all three were to give the sound effects of the "Stooges." Or, imagine if those three had a few beers in them. LOL! "No, the button goes this way!" Get out of there, let me!" "You shut the wrong side of the tailgate, first!" I do see where that big screen on the Ram, is almost too big. Looking at the screen, while driving, is worse than driving while looking at your cell phone. Think about it? The one thing we can all agree on, the prices on both trucks, is way too much money!

Pretty close to my 2020 Ram Rebel. Have had it 2 weeks after researching for 8 months lol. Thanks for the content. The Ram gps command is something like “Find”...

Great video guys. Liked that tailgate comedy! I can't wait to see comparison videos of these trucks to the Cybertruck when it comes out.

I wish GMC would put in electric lockers with the AT4 like in the the ZR2 Colorado....🤔🤔🤔

As always, Nathan hits the nail on the head; both in the reviews of the truck and that Roman should have bought the AT4 instead of the very ordinary trailboss/5.3.

I drove the GMC Elevation with the duramax and loved it all the options I want, regular tailgate, just pw&pl no need to have a nasa space shuttle for a truck. I'm with you definitely don't feel the need to have a flat-screen TV for a radio, just more stuff to break and have to spend money to repair.

I love these guys love the way they review the trucks but I'm a ram guy I love there trucks I've never had a problem with them keep up the good work love watching your videos

I cant wait until my truck arrives. I ordered the 2020 AT4 Carbon pro in Carbon black & the 3.0L diesel. My friend just got his Chevy equivalent and was all highway 70mph in Oregon. Put 621 miles and filled up once the light came on and put 17.81 gal in it. Do the calculations and that is 34 mpg. the big test is when you pull a boat. Car & Driver tested at a 6800lb trailer getting 17mpg. Take an average boat at 3000lb. you should get 20mpg. I will get mine late next month and are very close to you guys.

Awesome video once again guys! I think I've just fallen in love with the baby Duramax!

Great comparison and review. The tailgate discussion was worth it all 😁. Thank you guys for doing what you do 👍

Much better review video!! Loved seeing the active commentary not so much off script

The RAM box, my million dollar idea as a 12 year old I couldn't get rich off of.

You guys are awesome. This video is so funny. Tailgates and missed steps...

Definitely keep this format! Best video I’ve seen thus far

MPG loop with and without the tonneau cover on the AT4!! Great video guys!

I think your tailgate segment just proved why the best tailgate is the plain Ford one with integral steps that doesn't interfere with anything and works simply.

Great review gentlemen. I would save the buy, lease until they have both done some real offroad testing.

The best part of the video was when Roman missed the corner step on the GMC, it was just a good clean chuckle, a feat that all of us middle-aged guys have been guilty of!

Thanks for the info :) Definitely like the easy going vibe of this video. Keep up the good work!

Square body trucks at 5:25, NICE.

After watching many videos, both by TFL and others, I feel the need to point a couple of things out. 1: you wouldn't like the "huge" sunroof if you knew all of the issues they are having with them, the gmc "small" sunroof is tried and true. 2: I've drove all the 1/2 tons offroad, and the e lockers in both the ford and ram are speed limited, they will unlock at a relatively low speed, making them useless in mud and dirt when wheelspin is excessive. People say the g80 doesn't work above 20 mph, I've never had them not lock regardless of speed. And 3: the barn door tailgate being split vertically, really concerns me if you were to any significant amount of weight on it, I see the latches as a weak point for it. Just my .02.

Haha. I've never seen so many grown men have problems with tailgates. Thank you for all the great videos!

I know it's a new generation but I cant help but remember the series of videos you guys did on the eco diesel shenanigans

Nathan has the best shirt ever seen on TFL!

Raw. Enjoy the back to basics approach.

Best review ever. The live format was fun and honest. The tailgate scene was great! Can the air suspension be adjusted when trailering?

One of your best videos. Keep up your unique character traits and reviews.

What truck has the most comfortable seats, all I care about

5:55 to 6:00 the ram rebel has an 8 inch available for the rebel and it is more easy to learn for u all old people.

Really Great video and review. The 3 of you should do more video's together. Knowledgeable and very entertaining

Best video. Bunch of guys hanging around and talking about the fav topic.. Trucks. Loved it...

Tap, tap, clunk right into the trailer hitch. A body shops dream.

AT4 with the duramax is the way to go for a 1/2 ton diesel. That inline 6 just dominates both v6 diesel from fiat and Ford. I’m a ford fan too.

Keep them live. Much more entertaining and real. Definitely one of your best reviews. Cheers.

I got a dark quartz metallic AT4 Dec 2019. I had a 2014 Ram eco diesel and after 13k it had a chronic issue. You get a service electronic throttle position switch message and the truck would go into limp mode. The ram spent over 6 months time for 4 service visits and Ram couldn't fix it and they wouldn't replace it. With the GMC I have 26k miles on it and it gave me a scare but GM fixed it. About 12k a glow plug went bad. I have and have had several 2500 RAMS with the Cummins 5.9 and 6.7 and prefer i6 configuration so happy to wear out this GM 3.0. So far so good.

I'm buying the GMC purely on the ability of Snarf's finding

I like the Carbon bed on the GMC and the bedside storage on the Ram. The tailgates on both trucks are just a gimmick and I could pass on the sunroof on both trucks. I like that the Ram has a larger fuel tank too. I feel like you guys dropped the ball on both of these by not at least telling us what the towing capacity was for both. One of the reasons you opt for a diesel is for more towing.

Leased my Ram!...Thanks guys for the review!!

Observation on the tailgate test. I think if you would try and put 60lbs bag of cement in both beds Ram will be easier and safer on your back with barn doors setup. Also think 12" screen is overkill, 8 is quite enough. Love your videos, keep em coming!

I feel much more confident with an American straight 6 over an Italian V6 diesel

Jesus christ, when Roman missed that step I lost it 😂😂

WOW!!! The most entertaining review yet! Between the sibling style bickering, and a missed step (Actually missed a step!) With a lot of great information, a great review. Thank you, fellas, keep up the good work!

I was so embarrassed when using commands I thought my English was that bad, well that changed today thanks to TFLT.

More and more I see of that diesel AT4, the more and more I want it.

Nobody: I want a badge for all the options packages on ma truck! GM: Yes

Half tons are much better today for towing . And I love a straight 6 Diesel for reliability. I’ve never known a V-6 to last that long, but I might be wrong with the new V6 diesel’s. Thank you for showing the new trucks . great review !!!!!! Haven’t seen a lot of you Nathan .

This was your best video yet ...lol you guys are hilarious, this is how I started my day watching this and couldn’t stop laughing . Then with Andre in the back seat making his comments reminded me of my kids on long trips ....anyways enjoy all your videos , thank you

I think it was embarrassing for Ram that it could not find Snarf's with all that shiny, flashy tech and the no-nonsense GMC just nailed it first try.

I can’t beleieve noone said “forget it”. The diesel is 20-30 years behind in technology and engineering compared to gas in the half tons and the price is prohibitive from any mpg gains and the maintenance on the diesels is insane plus def....

Nathan ties this whole show together. Wish you guys would show him in more videos

Just bought the AT4, on mine GMC dropped the price of the 3.0 upgrade from $2,495 to $995 actually had a reissued window sticker. The old window sticker was $65,450, new sticker is $63,950. With $6,000 rebate and dealer discount was able to get it for $9,637 of of sticker price for $54,312 before taxes. I love this truck, and your review was great, almost got the 6.2 trail boss, glad I didn't. Can't get the auto cruise, video rearview mirror, wireless charging and most importantly the pro tailgate.