2015 Chevy Silverado 2500 takes on the Grueling Ike Gauntlet HD Towing Test

( www.TFLtruck.com ) The new 2015 Chevy Silverado 2500 with the 6.0L V-8 is designed to tow. But how well will this new Heavy Duty GM pickup tow when the road goes straight up and the air gets thin. We wanted to find out so we maxed out the tow load at over 20,000 pounds and floor the pedal up the TFLtruck Ike Gauntlet. Can a gasoline powered heavy duty pickup compete with a turbocharged diesel engine? Watch another Ike Gauntlet extreme towing test to find out.
The Ike Gauntlet is a timed run up one of America's steepest highways from 9,000 feet above sea level to the top of the mountain at entrance to the Eisenhower Tunnel in Colorado.
( / tflcar ) Please visit to support TFLcar & TFLtruck.
Check us out on:
Facebook: ( / tflcar )
Twitter: ( / tflcar )
and now even Truck Videos on KZbin at:
The Fast Lane Truck ( / tflcar )
and classic cars as well at:
TFLClassics ( / classicsunleashed )

[@MikeSmith-ni3oo]

I am glad Emme was short lived on the channel, she just wings it instead of doing research before filming so she has her facts straight.

[@evanwright8081]

Karen!!!

[@CodySimoncelli-of7xx]

I have that same truck. 2017 Silverado 2500 with the 6.0 gas. It’s coming up on 200,000 miles now. Towing, snow plowing, you name it. It’s no speed demon by any stretch of the imagination, but it nice knowing that I can count on this truck 7 days a week. Far and away the best truck I’ve ever owned.

[@jameswarren7785]

WOW I would rather have my ears stuffed with glass than have to listen to her again.

[@jakeschmale4679]

Ikr annoying asf

[@SealofPerfection]

Yeah, I get that they were trying for some eye candy, but she's simply not knowledgeable and you just don't need 3 people in the truck talking.

[@Kevincheesepizza]

Amen to that

[@alanj7306]

Haha, glad they lost her.

[@reycuerdos]

With all her yapping they forgot to check the transmission oil temperature. All that towing and didn't even bothered to do that. Like, really!? Geee, thanks lady.

[@hatethevandals]

If you know anything about these trucks, when you are pulling a hill you can shift to "M-5" and keep the transmission from shifting to 6th gear. This will keep your truck in the higher RPM's and thereby keeping it in the meat of the torque. Don't let the computer make the decisions for you when you are towing. I tow an 8,000 lb. toy hauler with the 5.3 6-speed using the manual shift feature with no problem. These engines make their power at high RPM and i've never had an issue.

[@MYCHANNELWITHMYSTUFF]

This test was specifically to determine how the computer handles this tow example but you are correct. They should have talked a bit about how to manage the torque better.

[@andyharman3022]

Locking out 6th gear wouldn't have mattered in this test. The truck never got above 3rd.

[@MrShibbysweet]

Anytime the lady talked I fast forwarded!

[@neworder18]

Yay for another Ike gauntlet vid!

[@TexanUSMC8089]

The 6L90 trans will work if you know how to drive it. I know its auto, but if you put it in manual mode, and tow mode, set it on 4 th gear, then it'll shift 1-4 gears. Make the rpm you need to be in the highest gear you select. You still have an auto trans. Plus the 6 speed trans works great in tow mode for slowing down. Not as good as exhaust break, but when you press on the break it'll down shift and help slow the truck by down shifting at higher rpms. Like a standard. The old 8.1 liter would have had no problem. Now days they want higher rpm smaller engines. No 454 or 460. The vortec 6 liter is a monster engine for it's size. It'll last twice as long as the hemi 5.7.

[@donaldthomas5852]

I have a 8.1 in a 3500 Chevy 4.10 gears and I have a 6.0 in a 2500 Chevy 3.73 gears . Big difference in every way the 8.1 out performs the 6.0 in heavy loads. The 6.0 is a great engine and pulls good and very reliable. But the 8.1 is in a class of its own being a big block. Chevy needs to bring back the 8.1 with improved fuel mileage.

[@docrx1857]

​@@donaldthomas5852 With all the EPA regulations on diesel now, big block gas makes sense again. When ford came out with that big 7.3L a few years back I thought GM would bring back the 8.1 to compete. Guess I was wrong because they havent shown any sign of doing it yet.

[@jediman114]

Became a patreon. You guys do a great job and I think you deserve the support.

[@SF-fm7ov]

I think everyone is missing the point on downshifting. IT MUST BE SAFE! It appears RPM drops to about 2800 before downshifting and then jumps to about 4700 with a rapid increase due to the lower gear mechanical advantage. If it had downshifted at 4000, then RPM's would have jumped to about 7890 after the downshift (using simple ratios). Great, now you have a blown engine. Engineers have thought this through. The solutions are either 1: More power, 2: More gears, so the ratios are less between gears, 3: Making the ratio less between all gears for more power but reduced highway speed. Otherwise you must live with wide difference in RPM's between shifts.

[@Magnum74]

The gas option in any HD truck is for those who don't need extreme towing. It's also the option for those who need to idle their truck for hours on end in all temperature conditions. It's annoying how little many publications know about trucks when it comes to gas vs. diesel in a pickup. I like that TFL runs the bag off the gas trucks along with the diesels hope they continue do so.

[@xpsmax1]

I pull an 11,000 lbs boat with my 2016 gmc 2500 6.0L and it does just fine. 360 HP is still plenty of power for the 13,000 lbs max tow capacity. Kinda sound like an idiot at 13.33 saying it sounds like diesel is the way to go. Here in the Midwest, we don't pull trucks and fully loaded trailers up the IKE and we certainly don't floor it and climb hills as fast as we can.

[@generaljohn4523]

@Roscoe Dogg Truth hurts. The 6.0 is a weak dog.

[@jonsmith919]

Colorado is diesel country. Please make sure you have good tires if you visit October-June in the mountains. Snow is possible

[@markmorgan5197]

xpsmax1 I’ve pulled around 17,000 5th wheel camper in my 2001 he with the 6.0 and the 4l80 from Arkansas to Montana and it did perfect still got close to 12mpg stayed right around 2100rpm up hill drop to about 6mpg at 4700-5200rpm at 50-65mph

[@PicolusCage]

I need a truck to pull a dump trailer full of roofing shingles. Looking at the 2015+ Silverado 2500HD Gas. I live in Illinois. It’s sounds like it’ll do just fine

[@agentorange2554]

@@PicolusCage No dpf, no def, no deletes and all of that garbage that comes with the diesels, not to mention the noise. I'm thinking gas myself for pulling a RV. I'll just stay on the flat land.

[@mattpee55]

hey guys, im glad you brought up that fact about when the transmission down shifts it drops way below the rpm range that makes the best torque. I have the same problem with my 08 sierra 1500. I find it annoying and disappointing. Like my truck but wish gm would change this. You guys should ask someone from gm engineering about this, im sure they will take you guys mores serious about this problem than the average consumer since they have no rectified this problem for at least 7 years now. keep the comparisons coming.

[@rodneyhowell2703]

Wow I like the results of the chey glasser in towing.thanks you are helping me big time since I am a Ram fan

[@tomsfruitstand6821]

I’ve got an 04 with the 6.0 and the 4.10 Dana 60. It will pull anything I need and I haven’t had any problems with any part of the drivetrain.

[@christopherking2012]

Dana 60?

[@jalapenovibes]

get. her. out.

[@TacomaJD]

The shift points can be easily remedied with a Diablosport or whatever brand programmer. I had an 06 2500HD with 6.0L / 4 speed 4L80E, used a Diablosport Predator programmer and manipulated the shift points a bit, drove like a totally different truck. I'd be interested to see the difference in the truck in this video pulling this load before and after a good programmer that changes up the shift points and is quicker to gear down when needed, like at the top of that mtn.

[@MendicantBias1]

Interesting how the Ram 6.4L ran the same Ike run a minute slower than the Chevy 6.0 2500. Both are great trucks, although it does go to show how tech specs don't always mean better performance. Nice test guys!

[@dennisreynolds6915]

Because that engine sucks and the gearing and trans are not tested nor work together. It's hilarious how bad dodge is at certain things. Chevy has this setup dialed in. Just like Ford with their axle ratios

[@scottjeans6184]

I know you guys leave it in "tow haul" just to keep it as even as possible between the brands as they all have similar options. That being said I have a 2500 GMC HD,gas 6.0,6spd trans, and I agree that if you want a tow all the time, mountainous terrain/hills,you want a diesel. I find using the manual mode helps a lot with the "downshifting" shortcomings. Love the channel.✌️

[@MikeSmith-ni3oo]

My former tow vehicle was a 2008 Crew cab Chevy 2500 HD 6.0 4.10, it towed a 10,000 lb boat with ease at sea level. But that truck was totaled out in an accident and I replaced it with a diesel F-250. The extra power is nice with the diesel, but there is a $7000 diffrence in cost.

[@jwoldmanbf3]

My dad has a 2001 chevy 3500 duly 8.1 gas engine. We tow a lot in the Ozark mountain's and are truck has no problem climing the hills with are 34 foot camper. It sounds like we should ceep are old one! And i really like you guys videos!!!

[@Kornatoski]

One thing that would be helpful on these truck reviews, especially with the GM products, would be to mention the rear-end-gears (3.08, 3.23, 3.42, 3.73, 4.10) it does make a difference ...

[@jonsmith919]

Kornatoski I had a 1500 5.3 liter with 3.08 rear end and it was awful at towing! even with 6l80e. Had I known the made it that high of gears, I never would have bought it.

[@rememberussliberty1822]

Be said it had 4.10 rear end

[@SRTifiedRAM]

The Fast Lane Truck "It takes weeks of editing Ike Gauntlet videos..", but you forget the '2' in '2500' @ <a href="#" class="seekto" data-time="130">2:10</a>.. lol Just busting your guys' chops. Keep up the great work!

[@FordTrucksCT]

That chick is annoying. If you can't get the guy don't have anyone

[@toxicnick253]

That lady is super annoying, please take her out of the videos, and bring roman back

[@jonsmith919]

toxicnick253 no! He is annoying kgb agent

[@farmerallis]

GM really needs to get that 8 speed in these and tune it properly in tow haul mode.

[@SealofPerfection]

Plus, these computers learn your driving habits, so if they only drove this truck a day or two and just once up the mountain, it had nothing to draw from...it was still learning.

[@davidbye11]

Something I would have liked to see is the transmission temp during the pull up the hill

[@a.f-body1vids655]

So, so many ways to get more power from this engine!

[@MarkPdot]

I'd love to try this my 2000 Chevy Silverado with the 6.0 and 3.73 gears. I'd get crap MPGs but would be interesting.

[@rachetbomber2]

Btw the way they took off when they were going up the Ike Gauntlet in 1st gear at 5,500 RPM's wasn't redliney... That was the redline.

[@forrestgump8241]

Thanks for sharing this review guys I am considering purchasing this very truck and had a very hard time figuring out what how it would behave under extreme conditions. Maybe I missed these couple of of important points: does the truck not offer manual shifting (meaning you can press a butting and ask the automatic transmission to go into a lower gear)? Also, what was your payload on the truck (I'm guessing ~1400 pounds on the hitch, ~600 in the cab and ??? pounds in the bed).

[@adolfoabhurtadoc6106]

Boys! You should call her for hepl you in future videos! She makes fabulous "average people" questions that untill now I've never seen you answer, for example about the trailer brake controller for fixing sway problems; weight distribution for improving stability, dealers that doesent know what product to sell, etc. Mr Truck has tons of knowledge ans also Nathan, but she knows the way to expose those knowledge in the video! That is really good!!

[@Handmantoot]

Just became a patreon!

[@MrSkyentist]

I'd still love to see the ram 1500 eco diesel do this run with the standard trailer. Ram also has completed the new towing standards and none of their ratings for their trucks based on their internal tests dropped. Some even increased when completing the standard tests toyota already complied by.

[@leroymorris6036]

thanks for the info it helped me...

[@MrDMV816]

Would of liked to know the trans temp going up that hill.

[@camperbum]

I have the LTZ, I can manually shift or let it shift my itself, if I'm pulling hills, than I use the manual shift it works great for up or down.

[@anthonyj810]

I think the 6.0 is a better deal because think of it, you're only gonna get about 2-3 mpg better at most with a diesel, diesel is always at least 40 cents more than gas, the oil changes cost more, the maintenance and repairs cost more, it cost $8k more just for the diesel option.

[@SealofPerfection]

Not long enough to justify the extra cost, both up front and in maintenance and repairs. Unless you literally tow a huge load every day and up hills like this, the diesel makes no sense. It's more of a "want" than a "need".

[@dylandownard209]

I agree. You blow a motor in my gas truck you can go buy a new one and put it in for like $5k, vs a duramax which will cost you $15k to replace. Diesels are more finicky too. I have a cold air intake on my truck that had the filter slip off while in the mountains ( 40+ miles of dry dusty rough gravel roads following another truck). Started running like shit, opened the hood and discovered to my horror the filter laying in the bottom of the box, so I took it and the MAF, cleaned them both, put them back, ran a can of seafoam through it and changed the oil, good as new. Had that been a diesel it would've been an injector job.

[@tomsfruitstand6821]

I wouldn’t be surprised if the 6.0 would last as long as a diesel. I have an 04 LQ6 with about 400,000 hard working miles on it and it shows no sign of stopping with no repairs having been done on the entire drivetrain. The 6.0 is one of the best engines Chevy has ever made.

[@MYCHANNELWITHMYSTUFF]

Gavina Reyes Not any longer they don't and they are always in the shop needing something fixed.

[@survivalguyfyi5718]

If taken care of, a diesel engine lasts longer but you can get a bran new gas engine for $2,000 so for a dollar to dollar cost, you get more life for your money with gassers. you can expect 300k out of a gasser if maintained.

[@lesterpittenger5992]

The drop in rpm is because the torg converter will not lock until 3rd gear .1st and 2nd it stays unlocked.

[@CJ-rg4qu]

Love the show, always interesting to see how these trucks perform under extreme situations, but their high expectations drive me nuts. They load the truck to the absolute maximum, put it up at extreme altitude and temperature, and wonder why it can't maintain the speed limit, and then make us listen to them complain about it for the next 10 minutes. I understand this is a test to push the limit, but whenever you push a tool to its limit, you cannot expect it to perform the same as it does at 50% load, or even 70% load, which is how you SHOULD choose trailer size for optimal performance/weight trade off.

[@scottleggejr]

You have a completely valid point. No one should drive like this, but I like seeing how they do *real world* as opposed to tq/hp numbers at peak. The 2014 RAM w/ 6.4 video proves numbers don't mean shit when you put it down. No one would know how bad they compare if you didn't see/do this test.

[@0mackattack]

I'm highly interested in the silverado max trailering package review. It has 3.73 gears 9.76 " locking rear differential rated over 10 000 lb

[@rustyshackleford1656]

We've had 3/4 ton older chevys with the 6.0 and that thing would pull anything easily you guys need to exceed the ratings and see how the trucks hold up, if you know how to drive a truck right you can pull way more than it's rated to do, explaining why that trucks suspension isn't sagging at all with the "maximum" load capacity and it accelerates no problem with 12,000 lbs behind it

[@newlion7013]

Would love to see you guys do a test on the '06 LBZ

[@scottleggejr]

650 lb/ft torque... Why? The new trucks leave that old junk in the dust. If I hear about a 12V p-pump again versus **ANYTHING** new, I'm gonna lose my shit.

[@codycasner3732]

Can yall find a chevy with the 8.1 and do the ike, i know yall focus on the newest thing out. But the comparison between the 6.0, 6.6, and 8.1 gas would be interesting to see

[@Hagrid15SYLO]

literally looking for 8.1 on ike

[@EGGINFOOLS]

I would like to see some data logging maybe. With this truck we know it was floored the whole way, but with the other trucks they get to spped and have to let off to maintain the limit. I would like to know things like throttle positions and such because just doing it in a certain amount of time isnt really accurate. That would be a little closer to telling me how much the truck is really working. Cars pull out, or you have to brake more. Just a thought.

[@threefortyduster]

One small correction, all 2015 Ram trucks, 1500-3500 are J2807 rated. Otherwise, I really like these videos. I won't get into the this vs that that everyone else wants to. I believe the GM 1500s are J2807 rated as well. Can't go wrong with any of the new trucks.

[@MidMoTundra]

From my experience all GM gas trucks I've towed with, besides manual transmission trucks (I can downshift when needed), have had the problem with delayed downshifting. I've had a few 2500HDs with the 6.0 (4 speed and the 6 speed all with 4.10 gears); the trucks would slow down, like in the video, before it would downshift and pick back up. The GM factory tune calibration is pretty lousy, an aftermarket tune on GM vehicles really wake them up.

[@masonscott1672]

can you do more on this truck with the 6.0? I'm thinking about purchasing one

[@bigez526]

Install a milder cam, ring gap, and a low boost turbo. All problems solved.

[@royj8549]

At <a href="#" class="seekto" data-time="660">11:00</a>, the rpm drop is dependent on gear ratio. The 2nd to 3rd gear ratio gap dictates that relatively large rpm drop. It's not because of fuel economy "tuning". You can tune the ECU all you can and it'll still drop from 5600 rpm to 3800 rpm. This is the reason ALL gasoline trucks, especially the HD variants, need the 8 speed ZF or equivalent.

[@doyouhavegainsonyourphone4507]

Roy J Yeah, I was very surprised that they were so clueless that fear ratios are fixed. It can’t just drop it 500 rpm, where it’s at in a given gear is where it’s at period.

[@dickiehooton6186]

I know it was said that the weight distribution hitch is optional. What about pulling a 30 foot travel trailer. Do you need the distribution hitch?

[@AMiles8810]

That lady makes this video unbearable

[@jonsmith919]

Austin Miles road head though

[@emattful]

Hey guys, love your videos! If i can, i will try to donate!

[@roadrunner7828]

Our toy hauler is just over 13,100. My truck is a crew cab long bed which gives us an extra 900lbs. On this particular climb I use third gear and keep the rpms between 4 and 5k. The truck was waiting for a particular rpm at the top of the hill before it would downshift. I reality you just drop to 2nd and back off the throttle till you're over the hill. The only problem with these trucks and GM won't do anything about it, is that in manual mode for you to control the gears you lose automatic engine braking in tow haul mode which sucks going down the hill. And you don't want to shift back and forth between automatic and manual mode be cause the transmission automatically downshifts when you go to manual mode while driving.

[@B---dw6pz]

I only trailer hauled once but I never run tow/haul mode because I don't like to go above 2,000 RPM on my 05 GMC Sierra 1500 Z-71 OFF ROAD and it did just fine.

[@robertpolkamp]

+Evan Turgeon yup

[@joshuabradshaw2201]

Looking to upgrade currently using a 2001 suburban 1500 hauling a 6400 lbs camper and even with the stabilizer bars it’s still pushing back and forth like crazy and that’s with the camper completely empty

[@jayjroswald9127]

TFL you guys should look into the chevy reaper

[@Travesty_INC]

GM does make a real nice sounding gasoline powered 6l V8 engine. Only better sounding then this is the 6.2L Vortec V8 that you could get in the previous gen of Silverado/Sierra. Always been a GM Guy, but for towing, I'd have to stick with the Cummins (first diesel choice) or a Duramax (second choice). Diesel is the way to go for towing. Overall grear review TFL!

[@zachbaugh6317]

The trucks drop rpm when the throttle is wide open because the pressure on the transmission is to much, it would prefer to shift under less load, so lifting would help it shift. The only reason it up shifts on the launch when y'all floor it is because it red lines and the computer kicks it into protection mode.

[@skygaming4908]

She is nerve racking all u have to do is switch Manuel mode shift your own gears that is why they have it

[@dotustm8926]

To awnser the shifting question you guys asked. Not all the gears have same ratio or distance between eachother. You wanted it to shift at previous gear you witnessed a drop from redline to 3800. Lower gears will have more distance between them. If you noticed it shifted when it had almost 1,000rpm to rev before redline. Dont do itself any good to shift and hit redline and shift again back and forth....

[@vehicleshowcase7095]

Love the new duramax

[@ab81230ab]

Let's see a 2016 Gmc Sierra 2500hd 4wd sle 6.0!

[@WoodysGamertag]

One of the things I love so much about Chevy is OnStar. Do ford and Dodge have something competitive with it?

[@rachetbomber2]

No ford and dodge don't have anything with any information about your vehicle on your phone. There is that sync from ford and UConnect from dodge but that's all they have. Surprised no one commented you back on this sense you have over 1 million subs

[@shaunr9635]

Ford has sync services which isnt bad at all.

[@renitarinke3635]

Ratchetbomber2 l

[@LucDaigLTU]

Shaun R SYNC SERVICES ?? 1- don't work , 2- do not compare in anyway with OnStar,,,

[@shaunr9635]

***** no one wants to pay no out the ass for clunky on star. Sync services use your phone it's far cheaper and the way the entire system works is much cleaner, it will actually incorporate your nav screen

[@BigB-lt4ik]

Would have like to known the trans temp going up that hill. I have the same truck. It has manual shifting for a reason. I wouldn't have been out of 5th gear the whole way. And if it started bogging, I would have dropped down to 4th.

[@Tusuperbis]

GM needs to bring back the manual transmissions in their trucks. I understand that the tow rating wouldn't be as high as an auto because of the torque converter but, I would really prefer to "row my own"!

[@coreycantwell5990]

I have a 2016 Chevy 2500 midnight edition with 33 12.50 mud tires 46 gallon aluminum tank in the bed and 4.10 rear end. It has the larger back cab and medium sized bed and the 6.0 vortec. How did TFL come up with 20,000 lbs in max conventional is 14,800 lbs and gooseneck / 5th wheel is 18,000 lbs. My camper is 11,000 lbs bumper pull at 40ft long (not including the family and everything in the bed) and my 6.0 drags it down the road great. Even in the mountains. It has a downhill assist and handles the down hill in the mountains great. My 2016 6.0 vortec hasn’t struggled like this truck ever.

[@MNsparky]

I have a 2011 6.0 with the 3.73 rear end and I’m only rated for 9,400 according to the manual.

[@thinkingape7655]

I’m surprised he wasn’t manually shifting. I have this truck and manual shift all the time. Seems to work for me..

[@lfsracer79]

<a href="#" class="seekto" data-time="1217">20:17</a> It actually had to downshift to 1st gear. No power at that altitude.

[@SMiller5488]

Bring on the new 6.2 or 7.0 gas motor and 8-speed! The old/tired 6.0 6-speed still whipped the new 6.4 Ram...

[@bd6501]

Ok, it's nice to see how the truck did and it was ok for the max load. But, obviously this package is no match on max mountain loads compared to the duramax. But, for us light duty pulling owners with less than 10,000 to tow once in while this is a great truck. Mine is 2012 and does great for under 10,000 pounds. Adding a decent unrestricted exhaust and high flow air filter with premium would of helped this test a lot. And drive it right so it shifts correctly would of made a difference. The test does show a diesel is tops for heavy mountain hauling. Thanks

[@kentbremner7828]

aftermarket brakes specifically for towing? chevy 5.3 1500. 2010. towing max. any other aftermarket things i can upgrade to?? EFI's???

[@Magnum74]

It's good to see TFL with some women in these videos. Mr. Truck did a run with a country hottie in a Ram 6.4. Good stuff.

[@gmcdenali7178]

Another reason for there being a gas engine option is some people don't want a Diesel. Also not all people buy a heavy duty truck to tow with or do work with.

[@lanceavats8881]

At least it got up to the top that all I need in my truck

[@AIFRONINJA]

Has anyone else noticed it's hard to find these trucks in the LTZ brand, a lot of them are the W/T models.

[@RadggsAutomotive]

I pull 6K lbs. daily on a 2011 GMC 2500HD EXT cab LWB 2wd w/<a href="#" class="seekto" data-time="187">3:7</a>3 Eaton, rated @ 19000. Per a GM truck engineer, this is the best trailering combo. Doing the math, It would take 300,000 miles to pay for the cost option & fuel difference. Additional diesel maintenance cost not included. I believe the trailer brakes in this video my have not functioning properly. Having trailered over 100ks miles, a gain of 8, the trailer alone would slow both trailer & truck. Trailer brake temps were low compared to the truck. GM truck brake pads are huge. True this: I trailered thru WVA hills got 4mpg, vs. Ohio & Indiana @ 14mpg. Aero is best @ 72mph w/ bed cover and box trailer. Bag the rear axle and run 25lbs to save tire wear.

[@jidana3194]

I have a question i have a 2016 Silverado 2500HD with the 6.0 and i went pick up my 7200 lbs travel trailer and the whole trip it was going in 4th gear at 60 or 65 mph and i was in tow-haul mode i even had to disconnect the cruise control is that ok ?

[@jmbaseman]

I had a truck with this engine transmission combo and when I really had my foot in it with a heavy trailer the trans temp would skyrocket. When I did a long grade (like this) and the transmission heated up, it sometimes didn't want to downshift. I would be curious to see what the trans temp on this thing was by the time you got to the top seeings as you had it floored all the way up. I loved my 6.0 & 6-speed combo and it pulled everything I hooked to it but you have to have patience and drive with the welfare of the truck in mind; holding it to the floor for 10 minutes on a mountain pass isn't going to do the truck any favors especially when its at max capacity. So I'm not surprised that it wouldn't downshift for you after being thrashed like that, I'm guessing the transmission was up in the neighborhood of 280-300 degrees by the time you got to the top. I drive a Duramax now and it defiantly pulls better and does the big grades way faster but that doesn't mean the gasser can't do it you just need to take a little more time. I would say if you live in the mountains; buy a diesel, but if you live in a flat state and you don't have a lot of crazy high winds the gas will pull a lot of weight for a lot less money.

[@stephenn6657]

I would like to have changed your trans fluid on that 6.0L to an aftermarket fluid. like redline. Just to see if it made a difference. I know changing brake fluid to a higher temp, after market fluid makes a huge difference.

[@demarcusbody9437]

Simple get a upgraded transmission boom no more problems

[@roundsm18]

Mine lives at about 190-200 when I have long pulls. 08 2500HD and my fifth wheel trailer is only 12,500 now. It definitely has more features but power wise I miss my 1989 460 a lot which considering the HP/Torque numbers I’ve been told they should have is disheartening. The 460 had it beat pulling that trailer at 8.5 mpg. Chevy gets 6.

[@Vvolf36]

According to Chevrolet, peak HP is at 5400RPM's, peak torque at 4200RPM's. 90% torque at 2000RPM's, so maybe that is why it stayed in the 4000RPM range? Max towing capacity of 14,800 lbs with regular cab 2WD.

[@kylerichards4723]

Make that squackey broad ride in the stock trailer. Use your manual shift I use it when I tow my 26' toy hauler fully loaded and the truck just begs for more. Learn your pickup.

[@cschmude]

Awesome Truck and Bullet Proof Motor..... Chevy Love i have 250,000 on mine.

[@moparcharger8642]

cschmude imagine a 66k miles on my 2500hd

[@jidana3194]

Also what's the normal transmission temperature while climbing that hill

[@BigEdandThePups]

I have the same shifting problem with my 2014 2500 6.0

[@ericd5266]

where is the db SOUND level test??? That is a huge selling point to some consumers!

[@6bolt_Z]

I'm assuming you can get a tune to change the shift points? And I do understand why you have it floored the whole time, but just let off for a second and I'm thinking it will downshift?

[@roundsm18]

Mine wont, it just instantly slows down. It winds third gear out forever. I hit the pass and smash it and the next 12 miles are 90% throttle or more in third gear watching the speedometer drop down to 45. I went looking for this because I was curious if the 6.0 6 speed always did it. They just got it to go faster.

[@ScottHBrown]

I know you don't use manual mode for test purposes, but, if you were to use manual mode you yourself could keep it in the range you need it in. When I tow with my Suburban on the grades you encountered in West Virginia in drop it into second and keep the rpms where i want them. I say for testing purposes, you should use manual trans control on the ones that have it.

[@eagle4545100]

when will yall test the 2015 f250 with the 6.2?

[@antman6721]

Nice truck and it's a good one ours does great, it did so much better then the ram did and sounds a lot better to gm to me has the best sounding exhaust

[@TexanUSMC8089]

the 6L90 also has a very low first gear. great for hotroding and great for taking off with a load.

[@jessefoster8987]

Anyone ever put a tuner on one of these? I’m lookin to get one to pep mine up alittle.

[@eroomjennings]

Unbelievable!!

[@travisbozeman9061]

The reason it's not downshifting going up the hill is because you holding peddle in the same spot ether pump the peddle or set the curse control I have a 1/2 ton 6.2 gas that will out do what you showed here

[@johnwayne5598]

Finally someone with a brain

[@MYCHANNELWITHMYSTUFF]

the truck is rated to tow 13000 lbs as long as there is no payload other than a 150lb driver. Maximum trailer ratings are calculated assuming standard equipped vehicle, 150 lb driver and required trailering equipment. The weight of optional equipment, passengers , tongue weight and cargo will reduce the maximum trailer weight your vehicle can tow. you said you have your payload up to 3152.

[@michaelreece9106]

Next up is the 2015 dodge 1500 eco diesel 8 speed regular cab.. Tradesman bare bone work truck...

[@WasDannyHere305]

Can you test the power wagon ?

[@uberDoward]

Comparing this to the Ram 2500 with the 6.4L, am I crazy or did this 6.0L with way less power manage to keep a higher speed?

[@wandalllither2452]

u can lower HP and increase Torque at the same time(motorcycles has high HP but less torque, cuz it dont need much torque due to the weight, and exactly opposite for heavy vehicles), HP is for sales and Ft/lb is for pullin))))

[@SealofPerfection]

Yes, it did. You're not crazy. The Chevy smoked the Dodge fake Hemi in this one.

[@Icutmetal]

I think the transmission really ruins it for the 6.4 Ram.

[@andyharman3022]

Yes, it ran the hill more than a minute faster than the Hemi Ram.

[@destincockrell7576]

Can you guys do the 2015 gmc sierra slt

[@StumpyVanLife]

As a society we are so spoiled when it comes to power levels on modern vehicles. In this video going up hill they are whining and complaining about the lack of power from the gas engine. While they are just wizzing by big rigs! I mean c'mon! In 1996 I got my CDL and started driving semi's and went to work for a large company (orange trucks). My first truck was a 1990 International COE with I think a 330 hp cummins and a 9 speed transmission. 330hp towing 80K lbs gross out of Salt Lake city on I80 headed east toward Wyoming. I remember that night vividly. It sucked!! I was on the low side of the transmission for over an hour trying to climb that hill. At one point I was below 10 mph. Why do we feel it's necessary to be able to do over 60mph towing over 10,000 lbs up a 7% grade? It's not necessary at all. Just freaking cool your jets a little and cruise up the hill at 45 or even 40. You will get there, might take a few more mins but you will get there. Time is money, Yes it it. So here is my question. How much extra time will you need to spend at work to pay that extra 10K for the Diesel engine?

[@edwardlongoria4994]

Why didnt yall use the downshifter the plus and minus symbols on the stick?

[@jasonguillory3374]

20,500 that was total gross. How much was the twining weight? Thanks. Appreciate your research

[@mario-sl6cz]

are they going to update the 6.0 or drop the 6.2 in