2020 Duramax L5P Engine Revealed

Gale Banks takes a close look at the new 2020 Duramax L5P. He compares its upgraded parts to those from the current engine. Find out how GM bumped up the HD's towing capacity to a whopping 35,500 lbs.


  1. Scott Gregory

    Scott Gregory

    10 horas atrás

    Banks needs to test the 2020 diesels for the “Big 3”.

  2. PaddleDogC5


    18 horas atrás

    Another junk oil dripper

  3. DWAYNE Desisto

    DWAYNE Desisto

    Dia atrás

    Isn't it an Isuzu motor?

    • Banks Power

      Banks Power

      7 horas atrás

      Despite what most people think, Isuzu has little to no design input on the Duramax engines. They co-own a portion of the D-Max company with General Motors, but it is now considered a past venture according to them.

  4. Andrew Crocker

    Andrew Crocker

    Dia atrás

    EXCELLENT Video Mr. Banks!!! QUESTION: How much of the 2020 L5P "Table parts" can simply be bolted onto the early version L5P's? It seems, depending on spacing, that at least the oil cooler could be if not the fan drive setup as well... Looking forward to the videos about the 2020 L5P as well as how much it takes to "kill" (or shall I say destroy the turbine on) the 2019 L5P engine you have made 3 parts to already. Which by the way I have really enjoyed listening to you explain and talk about. You are right though. Seems like most "tuner kits" are not the way to go. Lastly, If I did anything to my 2018 L5P, it would simply be to delete the DPF and DEF... Seems I woudl regularly get a little better MPG being that the Regeneration process dumps so much extra fuel to clean the DPF. smh. Thank you. Andrew C.

  5. Ahmad Abdallah

    Ahmad Abdallah

    2 dias atrás

    Still an Isuzu engine

    • Banks Power

      Banks Power

      6 horas atrás

      Despite what most people think, Isuzu has little to no design input on the Duramax engines. They co-own a portion of the D-Max company with General Motors, but it is now considered a past venture according to them.

  6. Gary D

    Gary D

    6 dias atrás

    What about adding dual exhaust? I'm sure that will increase Hp too..

  7. AmarilloHorseSports


    7 dias atrás

    Too bad it's a duracrapper , V8 diesal engines are a thing of the past. I'm doing more with only 6 cylinders, and never had a cooling issue.

  8. david smart

    david smart

    7 dias atrás

    I frigen love this guy! Keep kicking ass Mr Banks. Your what our great country is all about!

  9. Coffee Drinker

    Coffee Drinker

    8 dias atrás

    That is 35000 total including driver and everything in the vehicle. Which in most States Require a CDL.

  10. Charles Pyatt

    Charles Pyatt

    8 dias atrás

    GM needs to offer a "Banks" package so bad !! 👍😎👍

  11. Hunter Killer

    Hunter Killer

    9 dias atrás

    I don’t like critiquing anybody, because who am I. I’ve been a technician for years and I understood what he was saying. When it comes to the Oil cooler and then the fan pulley he really sucked at describing why it was better. I understand why it was better but anybody who does not know vehicles or engines not motors will not understand this. The oil cooler, with that coolant coming in low and leaving high creates friction which in turn pulls the heat out of the engine oil. He doesn’t explain that so others won’t understand why that’s a better idea. The fan pulley having ribs on the pole he gives more bite to the belt so there’s less chance of fan slippage on a larger fan. He does a great job with designing and everything else but the man has issues explaining things from what I’m seeing. I’m sure he’s a great guy, I mean no disrespect. Geniuses have issues dealing with people because they don’t know how to explain what they want. Not saying he’s a genius, but he is smart and his explanation sucks.

    • Hunter Killer

      Hunter Killer

      9 dias atrás

      I said engines, not motors because people call their engine or motor. Motors are electric and engines or mechanical. Just like calling a technician a mechanic. Might as well call a lawyer a cop.

  12. Fermin Retana Meza

    Fermin Retana Meza

    11 dias atrás

    Is great turbo duramaxx

  13. Thomas Hawley

    Thomas Hawley

    14 dias atrás

    Gale banks has forgotten more than I will ever know... what a beauty

  14. Greg Cain

    Greg Cain

    14 dias atrás

    Mr.banks ur a smart man i tell ya

  15. Shane Singleton

    Shane Singleton

    16 dias atrás

    3:20 "We've got one in the dyno cell which i'm going to try to kill. In fact... I'll get there. That's a whole different story, but be watching for those videos!" LOL Love it!

  16. Greg Powell

    Greg Powell

    16 dias atrás

    Gale, I've been curious in the past about the location of the exhaust side and plumbing of the turbo for V engine diesels. I note on your Sidewinder kits in the '80s the turbo is off to the side but Duramax and Powerstrokes are in the valley. Does being off to the side effect egt and is there any concerns about radiant heat on neighbor components in the valley? Just seems kind of odd to put something so hot right there...



    16 dias atrás

    Chevrolet makes the best trucks and are the only old trucks you still see on the road unlike Fords and Dodge.

  18. Dan Hillman

    Dan Hillman

    21 dia atrás

    But but but, GM sucks! Right?

  19. Least Trending

    Least Trending

    23 dias atrás

    Old man studders and mumbles so much u cant understand him

    • 2Stroke Diesel Power

      2Stroke Diesel Power

      22 dias atrás

      Least Trending..... Really??..... All the rest of us here, seem to have had NO trouble hearing And - understanding him whatsoever. I heard and understood Gale with no problem whatsoever.... and my hearing ability in my mid-70s leaves something to be desired.

  20. Josh Goode

    Josh Goode

    25 dias atrás

    The Duramax Diesels have changed the landscape as far as development goes and just raised the ceiling. I have a 2018 L5P on my 3500HD Silverado Dually and I pull a 40 ft. dovetail trailer and have done 45,000 miles in 6 months. I love the engine and I am so glad to have it with that Allison. The only thing to go wrong was a popped glowplug and that's about it. The engine is a monster in stock trim and that sumbitch can pull the freakin sky down. Gale I am interested in knowing though if that 2020 oil cooler set up will work on the 2018 version of the L5P and if there are any clearance issues.

  21. TK93 93

    TK93 93

    26 dias atrás

    What a fuckin mess of a engine

  22. Eshu


    26 dias atrás

    am I the only one who thinks this is theraputic to watch?

  23. Austin Atkins

    Austin Atkins

    27 dias atrás

    Great video Gale, keep’m coming sir!

    • Banks Power

      Banks Power

      27 dias atrás

      If you think this was great, wait till you see what we have coming next.

  24. philip dias

    philip dias

    27 dias atrás

    Should have an oil bypass filter as well. Newer emission systems destroy oil with soot and fuel.

  25. philip dias

    philip dias

    27 dias atrás

    Needs a provent or similar air oil separator on the pcv valve

  26. kevin goodrich

    kevin goodrich

    28 dias atrás

    Nice info but today's new tucks just cost to much for the average person. My 1997 works great and it's been paid off for years.

  27. AlaskaErik


    29 dias atrás

    I thought fan clutches were a relic of the 70s. I wonder why they don't use an electric fan.

  28. Jonathan Nelson

    Jonathan Nelson

    Mês atrás

    my 2014 pulled 50000 for 2 years the rear end is what couldn't handle it the engine did fine very strong 6.6

  29. It's Me

    It's Me

    Mês atrás

    He seems like 1 Cool Ass Down to Earth Old White Guy. I would love to spend a day with him.

  30. Bear's End Productions

    Bear's End Productions

    Mês atrás

    A truck 8000lb has very little chance of stopping a load 30000lb The load will drive you not the other way around

    • wlabishler 1

      wlabishler 1

      25 dias atrás

      +Bear's End Productions stopping is rarely the trouble. A good setup can easily stop itself. Its turning a really heavy load that would be a concern. Brakes do nothing to overcome the inertia when trying to make all that weight change its direction.

    • Bear's End Productions

      Bear's End Productions

      25 dias atrás

      +wlabishler 1 even then its dicey

    • wlabishler 1

      wlabishler 1

      26 dias atrás

      You really assume they are going to pull a 30k load without trailer brakes? That's a suicidal idea...

  31. Steve Fowler

    Steve Fowler

    Mês atrás

    81 Prius owners disliked this.

    • Banks Power

      Banks Power

      Mês atrás


  32. martin joseph

    martin joseph

    Mês atrás


  33. Aris Torm

    Aris Torm

    Mês atrás

    *DURAMAX #1* 🔧

  34. Dive Bar Casanova

    Dive Bar Casanova

    Mês atrás

    I heard the Ford 6.0 Powerstroke was the best quality engine ever made.

  35. todd reeves

    todd reeves

    Mês atrás

    could you imagine getting rid of all the epa garbage on one of these motors!!!--that motor would last a lifetime!!

  36. todd reeves

    todd reeves

    Mês atrás

    guys a little slow,, but damn is he smart!!-- would love to work for this guy!!

  37. lyle swavel

    lyle swavel

    Mês atrás

    May have to go to air brakes on large diesel trucks for stopping a 36,000 # load

  38. vess


    Mês atrás

    The old man still involved shows strength in a company 🤙🏽

  39. Mohammad Alahmari

    Mohammad Alahmari

    Mês atrás

    Movie for kid

    • Mohammad Alahmari

      Mohammad Alahmari

      Mês atrás

      Movie for kids

  40. vélocedad


    Mês atrás

    Gale Banks is my virtual Guru on all things Diesel Power!!

  41. David Matuszewski

    David Matuszewski

    Mês atrás

    Stupid ass egr!!!

  42. northerniltree


    Mês atrás

    Once in a while I meet a guy I REALLY like. Gale, my hat's off to you. Kindred spirit.

  43. Neo Craft

    Neo Craft

    Mês atrás

    Gale, great vid as always... please answer one question for me... I still don’t understand why Ford went with 2 complete cooling systems if Duramax and Cummins can get away with one. I like my 19 f250 6.7 but I can’t imagine why a company would want to sell all those extra parts when or if they don’t need to. And it would sure make a lot less potential leak points. Why 2 systems in Ford? Why not 1 big one?

  44. Ripsaw17 Dennis

    Ripsaw17 Dennis

    Mês atrás

    Still junk and i would never buy a gm for the fact that they moved jobs to Mexico hope they go out of business bailouts no more

  45. Bob Church

    Bob Church

    Mês atrás

    The years of knowledge and experience has become your wisdom that you share with us all, and the builds are improvement and longevity in every area you work and design, that comment about the holes in the Pulley very cool ,it reminded me of a late 60's chevy steel wheel. Looking forward to dyno testing videos.

  46. Michael Nelson

    Michael Nelson

    Mês atrás

    A true automotive engineer, not once did he call them a motor......

  47. Scott Simmons

    Scott Simmons

    Mês atrás

    Cool video, thanks Banks! I love how you get excited about all the little details.

  48. Steve


    Mês atrás

    Wow that's a cool video

  49. erik garcia

    erik garcia

    Mês atrás

    So my 2017 l5p is not efficient?

  50. Diesel Lover

    Diesel Lover

    Mês atrás

    Screw Chevy there traders 🖕🖕 dodge or ford only now

  51. David Walls

    David Walls

    Mês atrás

    Gm working on some new. If that was a straight 8 cylinder Engine that would be awesome. Gm also needs to go to a straight axle front end

  52. Ranchdude43


    Mês atrás

    I had a Banks system put on my chev. 1 ton duramax, everything but the cooler. After about 8 mo. after they put the system in, the controller ( display thing, what ever you call it ) went out. Banks repaired it no problem. I loved the Banks system and what it could do, but them the same thing happened again. I called and they told me TOUGH, we all ready fixed it once. And they were not very nice about ether. Now do you know what I think about Banks, and what I can tell people what they can do with Banks systems. After I spent all the money and this is what I got!!!

    • Ranchdude43


      Mês atrás

      In reply to my own comment, I know that shit happens but twice in a row the same thing after spending all that money and being told in so many words " tough shit". I often wounder just how many other people had the same problem ??? And I have been told that you could get just about the same thing with just a new chip. I don't think so time, with the response I received from Banks I think I might look into it.

  53. EZBMX713


    Mês atrás

    I don't get it, he keeps pointing to the waterpump and keeps calling it a fan?

  54. Scott Edwards

    Scott Edwards

    Mês atrás

    Gale Banks has never disappointed. Love the explainations and debunking of the bling products!

  55. lashbera


    Mês atrás

    What I didn't really hear is why the 17, 18 and 19 Duramax engines were so plagued with problems and failures and how GM thinks this next engine can be dependable. Also, this engine still has the exhaust manifolds on the outside of the engine which means more exhaust plumbing to get to the turbo and more places for problems unlike the really cool ford 6.7 design that puts the manifolds inside the v where the turbo is anyway. I'm not convinced this engine is good but I do believe the transmission will handle the power unlike the Dodge.

  56. kain hall

    kain hall

    Mês atrás

    this is why i LOVE mechanical fans.... ill take a slight HP loss... over a wiring issue killing a motor..... any day of the month im not sure if the electric fans are working right on my 99 buick century with 240,000 miles.... so its kinda got a reason not to work right.... but its -30f outside.... so ill wait till its 110. montana sucks.... its also full, stay out!

  57. Lewis Bradford

    Lewis Bradford

    Mês atrás

    I'll stick with my 12V Cummins

  58. Mopar For Life

    Mopar For Life

    Mês atrás

    It’s total trash like all Isuzu built diesels be ready to dish out $40,000 when it hits 150,000 miles for a full replacement motor and the crappy Alison tranny

  59. Sif Artorious

    Sif Artorious

    Mês atrás

    Duramax engines are badass but a pain to delete them

  60. Gadiel Santiago

    Gadiel Santiago

    Mês atrás


  61. Shakeel


    Mês atrás

    I see already on why I want to upgrade the Turbo on the LP5 engine.

  62. Steve Rogers

    Steve Rogers

    2 meses atrás

    Okay you got me, I subscribed and rang the bell

  63. joe paul

    joe paul

    2 meses atrás

    Should be called CM ...75% of all vehicles are made in China as is a huge part of the R+D. Killer engine though

    • Banks Power

      Banks Power

      2 meses atrás

      The Duramax assembly planet is in Moraine, Ohio.

  64. Bobby Miller

    Bobby Miller

    2 meses atrás

    Gale Banks is so one sided to G.M. give me a break. I will never buy anything from banks again. Look at every video on here is about General Motors.

    • Banks Power

      Banks Power

      2 meses atrás

      Gale spent decades developing Ford and Cummins parts and will return to focusing on them again soon. We'll see you this summer when we unveil our Ford 6.7L diesel and 7.3L gas programs. We're also working on new Cummins components.

  65. Paul Pelizzari

    Paul Pelizzari

    2 meses atrás

    Thank GOD there is someone out there watching out for us gearheads, bless you Gale !

  66. TheMagicMan119


    2 meses atrás

    Gale is a genius

  67. Brad Beeton

    Brad Beeton

    2 meses atrás

    people can say what they want about the ford 6.0 but if you get o'ringed heads and arp studs they are very very strong and they are ruthless.. I be pulling chevys out all day.. and duramaxs blow headgaskets too...

  68. claude hayden

    claude hayden

    2 meses atrás

    3:36 Begin old timer schooling nuubs. Well done sir and polite.

  69. anthony begriff

    anthony begriff

    2 meses atrás


  70. sean rakers

    sean rakers

    2 meses atrás

    Ford guy, but seems an awesome engine for GM

  71. bigsmoke27


    2 meses atrás

    Don’t know how engines work smh

  72. Austin Benesh

    Austin Benesh

    2 meses atrás

    Just discovered this guy and I'm already learning 10x more than I ever learned from superspeedersrob.

  73. Manuel Vallejo

    Manuel Vallejo

    2 meses atrás

    dude looks sick

  74. Roger Lund

    Roger Lund

    2 meses atrás

    The fact is the last good diesel engine produced by an American company was International Harvester and that engine was the 7.3 L Ford engine. The Japanese have mastered internal combustion engines a long time ago but people still want to say Americans have the know-how to build them the right way. I'm not so sure about that anymore

  75. Roger Lund

    Roger Lund

    2 meses atrás

    I wish people would stop calling this a Duramax engine. I worked for Isuzu for many years and I can tell you that they've been in the diesel business in excess of 70 years. They have generators at the North Pole that have 10000 gallon fuel tanks and they only service them once a year. Bottom line.... don't be embarrassed to call this in a Izuzu because that's what it is.

  76. Matt S

    Matt S

    2 meses atrás

    Wish I could work for this guy. I would never stop learning.

  77. dano


    2 meses atrás

    I like this guy. look forward to this new engine build. just sayin

  78. FansSports


    2 meses atrás

    Awesome! That makes my LBZ look like a Cracker Jack toy :\

  79. Nou Moua

    Nou Moua

    2 meses atrás

    Like 👍👍👍

  80. Mike Brown

    Mike Brown

    2 meses atrás

    Still a fuck Isuzu junker

  81. Alex Naranjo

    Alex Naranjo

    2 meses atrás

    Can he adopt me?? I'm looking for a gearhead grandpa to tell me stories when I visit. I dont care if he says the same story twice, I'll take notes!

  82. Steffin Mezger

    Steffin Mezger

    2 meses atrás

    Nice IZUZU

  83. roger dodger

    roger dodger

    2 meses atrás

    Mr. Banks. Years ago you worked on a modified 454ss truck. A shop truck. I would LOVE to see a video on that thing.

  84. Wayne Powell

    Wayne Powell

    2 meses atrás

    Excellent as always Gale. Just sold my old 1986 Ford Dually with the 6.9 and your turbo & exhaust and not one lick of trouble after all the years of heavy towing. Premium engineering and products. Nicely done once again Mr. Banks.My bucket list is looking at the Cummins/Ram combo if I ever achieve that mark. Continued success going forward. Thanks for sharing this great video.

  85. Lightchaserphoto


    2 meses atrás

    Great video how does the l5p compared to the 2020 versions for ram and ford?

  86. Daniel Crawford

    Daniel Crawford

    2 meses atrás

    Now if I only had a spare 100grand to buy the truck n send it to Banks....

  87. NakedDave100


    2 meses atrás

    Just another pos ISUZU engine built for GM!!

  88. jose Rodriguez

    jose Rodriguez

    2 meses atrás

    Shit for real???? Why when ford comes up with something new chevy GM copies right up???? Ford announced 7.3 couple months ago and now chevy lol haha

  89. Kurt


    2 meses atrás

    I love your passion and knowledge Mr. Banks, thank you for sharing !

  90. ThePolandball


    2 meses atrás

    Just subscribed, looking forward to diving into this content. This guy is an engineer's engineer.

  91. Jennifer Abraham

    Jennifer Abraham

    2 meses atrás

    Did anyone notice the Duramax funny car. 10 years ago it had a cummins. Not any more

  92. J. D. Caldwell

    J. D. Caldwell

    2 meses atrás

    I've been following Gale Banks since the beginning, I'm 66 Y.O. I had a 1992 Ford F-350 Crew Cab with the 7.3 International Powerstroke and wished I could afford the Banks upgrades. If I ever have another diesel, it will definitely be Banks modified. Sir, you are a genius.

  93. navy Guy

    navy Guy

    2 meses atrás

    Gale is an absolute legend, first book i bought as an apprentice grease monkey was his how to turbo small blocks and that was 40 years ago, but father time is catching up with all of us. Long live banks power

  94. c9j9RT


    2 meses atrás

    Gale - I subscribed. I would pretty much jump off a cliff if you told me to.

  95. david morrill

    david morrill

    2 meses atrás

    Live it up boys and girls the "greenies"want to put you on public transportation

  96. ViiV Creations

    ViiV Creations

    2 meses atrás

    GM is managing their stuff so bad i wont buy any of their garbage until they get new CEOs. Ford is doing everything right nowdays...LOVE this Dmax but....thats THE ONLY GOOD THING THEY OFFER LOL! the body and technology and price are complete garbage

  97. Fire Fox

    Fire Fox

    2 meses atrás

    If your going to tow, you need torque not horsepower, GM torque converters and transmissions need the improvement.

  98. Fire Fox

    Fire Fox

    2 meses atrás

    The Durashit

  99. roger lopez

    roger lopez

    2 meses atrás

    Are those duramax diesel still made on China like all the rest of the older duramax diesel engines?

    • steveman513


      2 meses atrás

      The 6.6L Duramax is built in Ohio and has been since its introduction in 2001.

  100. HorsepowerTube


    2 meses atrás

    You the man Gale. Looking forward to your Dyno series.

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