The 3.0 Duramax Podcast

In this episode of the 3.0 Duramax Podcast, I explain why I have a second 3.0 Duramax diesel engine sitting in my garage!During a recent trip to PPE, I was surprised with an early-production 2019 LM2 engine, giving us an incredible opportunity to compare the early and updated versions side-by-side. We'll be using these engines to create detailed teardown videos, maintenance guides, and technical comparisons for the 3.0 Duramax community.For products, check out https://www.demonworkshop.comBanks Discount Code = DEMONWORKS https://www.bankspower.com/demonworksGREEN AIR FILTER: https://amzn.to/4tgxNWPMotul 5w30: https://amzn.to/4sRbSp1Schaeffers 5w30: https://amzn.to/4sRbSp1Schaeffers 0w20: https://amzn.to/4sbSxyBACDelco Fuel Filter: https://amzn.to/3QFfXex3.0 Duramax Oil Change W/ PPE Oil Filter: https://amzn.to/3qmLR6o3.0 Duramax Oil Change W/ ACDELCO: https://amzn.to/3QtmDO5PPE OIL FILTER: https://amzn.to/3JP9j22 - BE SURE YOU ARE BUYING FROM PPE ONLY - CHECK SELLER NAME Just buy from demonworkshop.com to be safe.Fuel Filter Socket: https://amzn.to/4b52BkYFuel Filter KlickWrench Socket: https://amzn.to/42arKH6Aluminum Fuel Filter Cap: https://amzn.to/3FZir28K&N Air Filter: https://amzn.to/3S5sLvqK&N Fuel Filter: https://amzn.to/4b6Ux3ihttps:/www.maxl.com/demonworks https://www.bankspower.com/demonworksBANKS DISCOUNT CODE "DemonWorks"WEIGH SAFE HITCH: https://www.weigh-safe.com/product/weigh-safe-drop-hitch/?affiliate=demonworksALSO USE Discount Code DW10 at weigh-safe.com www.bankspower.com/DemonWorkswww.duramaxnews.comwww.bankspower.com/demonworksAs an Affiliate / Influencer, I earn from qualifying purchases. Your support is appreciated as it helps the channel to continue to test products!In this episode we also cover:✅ Why I now have two 3.0 Duramax engines✅ Early vs. updated timing chain differences✅ Tow/Haul mode testing and engine braking tips✅ Motul 5W-30 OIL SAMPLES SENT OFF + AC Delco DexosD 0W-20 oil being tested✅ Blackstone, Speed Diagnostics & Horizon oil analysis info✅ Transmission temperature fluid fill recommendations✅ Common owner questions answered✅ Cooling system and maintenance advice for LM2 & LZ0 ownersWhether you own a 2020–2026 Silverado or Sierra with the 3.0 Duramax, this episode is packed with real-world experience, maintenance tips, and technical information to help you get the most out of your truck.If you enjoy this content, be sure to subscribe and turn on notifications. New videos are coming soon featuring complete engine teardowns, side-by-side comparisons, maintenance tutorials, product testing, and everything related to the GM 3.0 Duramax.Resources Mentioned• Demon Works: https://demonworkshop.com• Duramax News: https://duramaxnews.comHave a question about your 3.0 Duramax?Leave a comment below! I read as many as I can, and your question may be featured in a future episode.#3MAX #30Duramax #BabyDuramax #Silverado #Sierra #LM2 #LZ0 #DieselTruck #Duramax #GMTrucks #TruckMaintenance #EngineOil #TowHaul

In this episode of the 3.0 Duramax Podcast, we're covering another GM recall for the 2024 LZ0 Duramax, a new GM service bulletin involving charge air cooler pipes causing engine stalling and low power, plus how to tell when an oil leak at your turbo resonator is normal—and when it's time to replace it.We also discuss:The latest GM PCV system recall (OTA update)Charge air cooler pipe failures and what causes themTurbo resonator oil leaks and billet resonator delete options0W-20 vs 5W-30 oil testing updateUsing an acoustic camera to diagnose air and exhaust leaksLM2 & LZ0 engine teardown updatesNew products available at Demon WorkshopIf you own a 3.0 Duramax Silverado, Sierra, Tahoe, Yukon, Suburban, or Escalade, this episode is packed with the latest maintenance tips, service information, and real-world dealership experience.📚 Duramax maintenance guides & technical articles:https://duramaxnews.com🛒 Parts & upgrades:https://demonworkshop.comIf this video helped you, consider subscribing and turn on notifications so you don't miss future 3.0 Duramax updates, recalls, technical bulletins, maintenance tips, and product testing.Topics Covered00:00 Introduction00 GM PCV Recall Update00 Charge Air Cooler Pipe Bulletin00 Turbo Resonator Oil Leak Explained00 PPE Billet Resonator Delete00 Acoustic Camera Testing00 0W-20 vs 5W-30 Oil Test Update00 LM2/LZ0 Engine Build Update#30Duramax #Duramax #Silverado #Sierra #LZ0 #LM2 #DieselTruck #GMTech #DuramaxNews #DieselMaintenance

In this episode, we cover a new GM engine monitoring program, the 2024 3.0 Duramax PCV recall, and take a deep dive into the 10L80 transmission bypass valve options—including the factory thermostat, the Barbell modification, and the PPE Full Flow Bypass Valve.

📖 Read the latest 3.0 Duramax news and articles here:
👉 https://duramaxnews.com (replace with the specific article if you have one)

✅ PPE vs Factory vs Barbell transmission bypass valves
✅ Why I switched back to the PPE Full Flow Bypass Valve
✅ New PPE 10L80 transmission filters
✅ 2026 transmission cooler differences you need to know
✅ Removing the active grille shutters for summer cooling
✅ PPE engine oil pan thoughts after long-term testing
✅ LM2 teardown update (106,000-mile engine)
✅ LZ0 thrust bearing & oil filter inspection update
✅ GM's new Engine Field Monitoring Program (they may actually request your engine!)
✅ 2024 Silverado & Sierra 3.0 Duramax PCV emissions recall update

If you own a 3.0 Duramax LM2 or LZ0, this episode is packed with maintenance tips, technical updates, product testing, and real-world experience from a GM technician.

🛒 Parts & Upgrades:
https://demonworkshop.com

📰 Duramax News:
https://duramaxnews.com

📞 Have a question for the podcast?
Leave a voicemail using the phone number in the description, and your question may be featured in a future episode.

👍 If you enjoy honest testing, dealership insight, and practical maintenance information for the 3.0 Duramax, consider subscribing. New podcast episodes are released every Sunday.

#30Duramax #Duramax #Silverado #Sierra #LM2 #LZ0 #DieselTruck #PPE #10L80 #DemonWorks00:00 Introduction
00:48 Transmission Bypass Valve Overview
02:15 PPE vs Factory vs Barbell Comparison
05:20 Superior Solutions Spring Kit Review
07:35 Why I Recommend the PPE Full Flow Bypass Valve
09:05 2026 Transmission Cooler Changes
10:20 New PPE 10L80 Transmission Filter
11:35 Active Grille Shutters Explained
13:00 PPE Engine Oil Pan & Extra Oil Capacity
14:40 LM2 Teardown Update
15:45 LZ0 Oil Filter & Thrust Bearing Update
17:05 GM Wants Your Engine? New Field Monitoring Program
18:55 2024 3.0 Duramax PCV Recall Update
20:15 Final Thoughts & Viewer Questions

We Discuss the recent LM2 Engine Teardown video where I show the bearings of a 100,000+ mile LM2 engine with a life of 8,000+ mile oil change intervals. We discuss Lake Speed Jr.s recent video talking about 0w20 / 0w30 / 0w40 and how AC Delco 0w20 engine oil is poop. https://www.demonworkshop.comhttps://www.duramaxnews.comhttps:BanksPower.com/demonworks DISCOUNT CODE DemonWorksLZ0 Engine Teardown video: https://www.youtube.com/watch?v=to-UC_LXz_8LM2 Engine Teardown Video: https://www.youtube.com/watch?v=DAKUmCFJ7gELake Speed Video: https://www.youtube.com/watch?v=2rXlLW1iZUQ

Today we were shown the first official images of the 2027 Silverado and I provide my initial thoughts on it. https://www.duramaxnews.com Banks Power Discount Code: DemonWorks00:00 Unveiling the 2027 Silverado Truck02:26 Design Features and Variations05:26 Engine Specifications and Performance07:51 Interior Innovations and Technology10:49 Trim Levels and Customization Options13:04 Final Thoughts and Future Expectations

In this episode of the 3.0 Duramax Podcast, I share what happened when I started tearing down a 3.0 Duramax engine and discovered four completely seized injectors. What should have been a straightforward teardown turned into a week-long battle involving penetrating oil, sledgehammers, cutting injectors apart, and eventually removing the cylinder head with the injectors still attached.We also discuss an important change to the 2026 Silverado and Sierra transmission cooler, answer 10 viewer questions, and cover topics including turbocharger failures, fuel additives, towing practices, oil drain plugs, fuel system concerns, and more.Whether you own an LM2 or LZ0, this episode is packed with real-world information from the dealership and the shop.🔧 Topics Covered:• 2026 transmission cooler changes• 4 seized injectors on a 3.0 Duramax teardown• Turbo cooldown after towing• LZ0 turbo failures• Fuel additives and fuel economy• Magnetic drain plugs• Tahoe/Yukon buying advice• Engine replacement vs resealing• MOTUL oil update• OTA update code P2002• Metal flakes in fuel filters📞 Have a question for a future podcast? (801) 209 9503Leave a voicemail using the number in the description or post your question in the comments.🌐 Duramax News:https://duramaxnews.com🛒 Parts & Upgrades:https://demonworkshop.comDiscount Codes:Banks Power - DemonWorksWeigh-Safe - DW10🎥 Subscribe for more 3.0 Duramax content, tech breakdowns, maintenance tips, and dealership insights.#Duramax #30Duramax #LM2 #LZ0 #Silverado #Sierra #Tahoe #Yukon #DieselTruckTimestamps00:00 Intro01:12 2026 transmission cooler changes03:05 My 3.0 Duramax teardown nightmare begins04:25 Four seized injectors discovered06:35 Upcoming LZ0 teardown and thrust bearing inspection07:40 Viewer Question #1: Archoil and fuel economy11:05 Viewer Question #2: Should you cool down the turbo after towing?14:05 Viewer Question #3: Turbo failure at 33,000 miles17:15 Viewer Question #4: Magnetic drain plugs and the new 2026 oil pan20:15 Viewer Question #5: Best Tahoe/Yukon years with the 3.0 Duramax22:00 Viewer Question #6: Engine reseal vs engine replacement24:05 Viewer Question #7: MOTUL oil update and oil analysis plans25:10 Viewer Question #8: P2002 OTA update issue and dealership charges26:20 Viewer Question #9: Metal flakes found during a fuel filter change27:35 Final thoughts and viewer questions

In this podcast, I break down exactly what you should look for when purchasing a used Silverado or Sierra with the 3.0 Duramax — especially trucks under 75,000 miles. From suspension noises and oil leaks to scanning for hidden codes and checking Carfax history, we cover the real-world details most buyers miss.As a GM technician who works on these trucks daily, I’ll walk you through:• What years I personally recommend (LM2 vs LZ0)• What to listen for during a test drive• How to spot suspension and tire wear issues• What to check underneath for oil leaks• Why service history matters more than mileage• Recent GM bulletins every 3.0 Duramax owner should know aboutWe also discuss a $800 LM2 engine I picked up and what its service history reveals — which is a perfect real-world example of why maintenance records matter.📞 Shop Phone Number (Call or Leave a Voicemail Question): (801) 209-9503If you have a question about your 3.0 Duramax or want it featured on the podcast, leave a voicemail.📝 Updated 3.0 Duramax Maintenance Article: https://www.duramaxnews.com/post/3max-maintenance-scheduleFull breakdown of service intervals and maintenance recommendations.🛢 Oil Leak Inspection Video (Must Watch Before Buying Used): https://youtu.be/be9u3XdSIk8Common leak locations and what to look for underneath the truck.⚙️ MAP Sensor Video (Related to Recent GM Bulletin): https://youtu.be/f2uBXmtPPpwHow to locate and inspect the MAP sensor if you’re seeing unusual codes.• Fuel temp reading 419°F & related codes• OTA updates triggering P2002 codes• Normal condensation-related misfire concernsThis is the 3.0 Duramax Diesel Podcast. I’m Greg — a GM technician and the owner of Demon Works. We create in-depth technical videos and real-world breakdowns specifically for 3.0 Duramax owners.And if you’re shopping for a used 3.0 Duramax — don’t skip the links below.For products, check out https://www.demonworkshop.comBanks Discount Code = DEMONWORKS https://www.bankspower.com/demonworksTrailer Tester: https://amzn.to/4t2xzmhGREEN AIR FILTER: https://amzn.to/4tgxNWPMotul 5w30: https://amzn.to/4sRbSp1Schaeffers 5w30: https://amzn.to/4sRbSp1Schaeffers 0w20: https://amzn.to/4sbSxyBACDelco Fuel Filter: https://amzn.to/3QFfXex3.0 Duramax Oil Change W/ PPE Oil Filter: https://amzn.to/3qmLR6o3.0 Duramax Oil Change W/ ACDELCO: https://amzn.to/3QtmDO5PPE OIL FILTER: https://amzn.to/3JP9j22 - BE SURE YOU ARE BUYING FROM PPE ONLY - CHECK SELLER NAME Just buy from demonworkshop.com to be safe.Fuel Filter Socket: https://amzn.to/4b52BkYFuel Filter KlickWrench Socket: https://amzn.to/42arKH6Aluminum Fuel Filter Cap: https://amzn.to/3FZir28K&N Air Filter: https://amzn.to/3S5sLvqK&N Fuel Filter: https://amzn.to/4b6Ux3ihttps:/www.maxl.com/demonworks https://www.bankspower.com/demonworksBANKS DISCOUNT CODE "DemonWorks"WEIGH SAFE HITCH: https://www.weigh-safe.com/product/weigh-safe-drop-hitch/?affiliate=demonworksALSO USE Discount Code DW10 at weigh-safe.com www.bankspower.com/DemonWorkswww.duramaxnews.comwww.bankspower.com/demonworksAs an Affiliate / Influencer, I earn from qualifying purchases. Your support is appreciated as it helps the channel to continue to test products!Resources:DuramaxNews.comDemonWorkshop.com 0:00 Intro – Big Updates & Episode Overview1:12 Viewer Question: Buying a Used 3.0 Duramax2:05 Best Model Years (LM2 vs LZ0)3:10 What to Listen For During a Test Drive4:20 Scan for Codes Before You Buy5:10 Check for Oil Leaks (Common Areas)6:05 Why Carfax & Service History Matter7:15 Suspension Noises & Tire Wear Issues8:25 Final Buying Advice (Before You Sign)9:10 New GM Bulletin: 419° Fuel Temp Codes10:35 OTA Updates Triggering P2002 Code11:45 “Normal” Misfire? GM’s Explanation13:10 The $800 3.0 Duramax Engine Story14:40 Service History Breakdown (What It Revealed)16:00 Upcoming Engine Teardown Plans17:10 Call In With Your Questions / Closing

In Episode 19 of the 3.0 Duramax Podcast, Greg (GM Technician & host of Demon Works) breaks down one of the most debated topics in the Duramax community:Engine oil consumption.GM states that up to 1 quart every 2,000 miles may be considered normal under certain conditions — but what does that really mean for owners?In this episode we discuss:Oil consumption email from a new 3.0 ownerGM Bulletin 22-NA-027 (camshaft cover concerns)Catch cans and how oil vapor enters the intakeBreak-in period differences (LM2 vs LZ0)How to properly check engine oilWhat GM considers “acceptable”Oil and Dexron ULV transmission fluid shortagesAutoZone leaked memo discussion: With recent oil shortage concerns and a leaked AutoZone memo suggesting manufacturers may approve alternative viscosities, could thicker oil become acceptable?This episode discusses what that might mean for warranty concerns — while clarifying that no official change has been announced.Upcoming DemonWorks contentIf you own a 3.0 Duramax, this episode will help you understand what’s normal, what’s not, and how to protect your truck long-term.For products, check out https://www.demonworkshop.comBanks Discount Code = DEMONWORKS https://www.bankspower.com/demonworksTrailer Tester: https://amzn.to/4t2xzmhGREEN AIR FILTER: https://amzn.to/4tgxNWPMotul 5w30: https://amzn.to/4sRbSp1Schaeffers 5w30: https://amzn.to/4sRbSp1Schaeffers 0w20: https://amzn.to/4sbSxyBACDelco Fuel Filter: https://amzn.to/3QFfXex3.0 Duramax Oil Change W/ PPE Oil Filter: https://amzn.to/3qmLR6o3.0 Duramax Oil Change W/ ACDELCO: https://amzn.to/3QtmDO5PPE OIL FILTER: https://amzn.to/3JP9j22 - BE SURE YOU ARE BUYING FROM PPE ONLY - CHECK SELLER NAME Just buy from demonworkshop.com to be safe.Fuel Filter Socket: https://amzn.to/4b52BkYFuel Filter KlickWrench Socket: https://amzn.to/42arKH6Aluminum Fuel Filter Cap: https://amzn.to/3FZir28K&N Air Filter: https://amzn.to/3S5sLvqK&N Fuel Filter: https://amzn.to/4b6Ux3ihttps:/www.maxl.com/demonworks https://www.bankspower.com/demonworksBANKS DISCOUNT CODE "DemonWorks"WEIGH SAFE HITCH: https://www.weigh-safe.com/product/weigh-safe-drop-hitch/?affiliate=demonworksALSO USE Discount Code DW10 at weigh-safe.com www.bankspower.com/DemonWorkswww.duramaxnews.comwww.bankspower.com/demonworksAs an Affiliate / Influencer, I earn from qualifying purchases. Your support is appreciated as it helps the channel to continue to test products!Resources:DuramaxNews.comDemonWorkshop.com

00:00 – Welcome to Episode 19

01:30 – Email From a New 3.0 Owner

04:30 – Was the Engine Underfilled?

07:00 – GM Bulletin 22-NA-027 Explained

09:45 – Camshaft Cover & Oil Vapor Design

12:15 – Catch Can Discussion (Winter Warning)

16:00 – GM’s Official Oil Consumption Guidelines

18:30 – 1 Quart per 2,000 Miles Breakdown

20:45 – Break-In Period & LZ0 Oil Use

22:15 – Proper Way to Check Oil

23:40 – Oil & Transmission Fluid Shortages

25:45 – AutoZone Leak Discussion26:50 – Episode 20 Teaser

In this episode of the 3.0 Duramax Podcast, I break down the REAL differences between the new CSF radiator and OEM — including core thickness, fin density, side tank construction, and long-term durability concerns.We also cover:• Why some 3.0 Duramax trucks won’t pass emissions• The correct drive cycle procedure to complete IM readiness monitors• What to do if you get a P2002 code after an over-the-air update• GM’s redesigned oil pan — and exactly how much oil drained out• Upcoming scan tool testing (and what I want YOU to see tested)If you own a 3.0 Duramax, this episode could save you time, money, and a major headache.👨‍🔧 I’m Greg — GM technician and founder of Demon Works. Everything I run, test, and sell gets proven on my own truck first.More tech resources:• duramaxnews.com• demonworkshop.comDrop your scan tool test suggestions in the commentshttps://www.duramaxnews.com Update to the new design engine oil Pan / P2002 Codes popping up after OTA update / Emissions test not passing / Dexron ULV available in Gallon Jugs / Motul 5w30 and 0w30 information ....0:00 – Intro & What’s Covered Today1:15 – New Dexron ULV Fluid Update3:00 – Sumo Springs & Rear Sag Fix5:00 – CSF vs OEM Radiator Comparison9:45 – My Radiator Leak (What I Found)11:00 – Emissions Readiness Drive Cycle Explained15:00 – P2002 Code After OTA Update17:00 – LZ0 Thrust Bearing Update18:00 – New GM Oil Pan Drain Results19:00 – Scan Tool Testing (Your Input Needed)

If you own a 3.0 Duramax diesel (LM2 or LZ0) and you’ve experienced the frustrating DEF warning messages while towing, this video is for you. https://www.duramaxnews.com/post/gm-google-gemini-update-duramax-guide-2026In this episode of the 3.0 Duramax Podcast, I put GM’s latest software updates to the test during a 900+ mile real-world towing trip from Utah to Las Vegas.We cover:3.0 Duramax DEF warning fix updateGM bulletin 22-NA-150 explainedGM bulletin 24-NA-196 explainedEngine Control Module (ECM) updatesInstrument Panel Cluster (IPC) software updatesReductant Control Module updatesReal towing fuel economy (ZR2 on 35s)DEF consumption during towing3.0 Duramax regeneration intervalsLM2 engine teardown discussion (I Do Cars analysis)Timing chain failure vs oil starvation debateOil consumption concerns in early LM2 enginesOver-the-air (OTA) updates explainedGemini update coming to GM trucksI DO Cars Teardown #3: https://www.youtube.com/watch?v=3g79j56AO3AFor products, check out https://www.demonworkshop.comBanks Discount Code = DEMONWORKS https://www.bankspower.com/demonworksTrailer Tester: https://amzn.to/4t2xzmhGREEN AIR FILTER: https://amzn.to/4tgxNWPMotul 5w30: https://amzn.to/4sRbSp1Schaeffers 5w30: https://amzn.to/4sRbSp1Schaeffers 0w20: https://amzn.to/4sbSxyBACDelco Fuel Filter: https://amzn.to/3QFfXex3.0 Duramax Oil Change W/ PPE Oil Filter: https://amzn.to/3qmLR6o3.0 Duramax Oil Change W/ ACDELCO: https://amzn.to/3QtmDO5PPE OIL FILTER: www.demonworkshop.comFuel Filter Socket: https://amzn.to/4b52BkYFuel Filter KlickWrench Socket: https://amzn.to/42arKH6Aluminum Fuel Filter Cap: https://amzn.to/3FZir28K&N Air Filter: https://amzn.to/3S5sLvqK&N Fuel Filter: https://amzn.to/4b6Ux3ihttps:/www.maxl.com/demonworks https://www.bankspower.com/demonworksBANKS DISCOUNT CODE "DemonWorks"WEIGH SAFE HITCH: https://www.weigh-safe.com/product/weigh-safe-drop-hitch/?affiliate=demonworksALSO USE Discount Code DW10 at weigh-safe.com www.bankspower.com/DemonWorkswww.duramaxnews.comwww.bankspower.com/demonworksAs an Affiliate / Influencer, I earn from qualifying purchases. Your support is appreciated as it helps the channel to continue to test products!00:00 – 3.0 Duramax Podcast | DEF Issues, LM2 Failure Debate & Gemini Update03:54 – 3.0 Duramax DEF Warning While Towing (2024–2025 Silverado & Sierra)06:47 – GM Bulletin 22-NA-150 & 24-NA-196 Explained | DEF Sensor & Fill Problem Fix10:51 – Real World 3.0 Duramax Towing Test After GM Update | 924 Miles, 16–17 MPG16:32 – LM2 Engine Failure Breakdown | Timing Chain vs Oil Starvation (I Do Cars Response)23:35 – Gemini AI Update for GM Trucks | Bulletin 26-NA-127 Explained25:41 – GM Over-The-Air (OTA) Updates Explained | Why Your Truck Isn’t Updating35:09 – Should You Install the Gemini Update? What to Know Before Accepting