The 3.0 Duramax Podcast

Did the EPA just make diesel deletes legal?
Over the last few days, headlines about the 2009 Endangerment Finding being rescinded and auto start/stop credits being removed have caused a lot of confusion in the diesel world. Many 3.0 Duramax owners are asking whether emissions rules were rolled back and whether DEF or DPF systems could be going away.
In this episode, I break down what was actually rescinded, what it means legally, and — just as importantly — what it does NOT change.
We discuss:
• What the 2009 Endangerment Finding was
• How greenhouse gas regulation differs from diesel aftertreatment standards
• Why the Clean Air Act still matters
• What the anti-tampering provision means for deletes
• How Right to Repair fits into the conversation
• What would actually have to happen for emissions removal to become legal
• And what 3.0 Duramax owners can realistically expect moving forward
I also share real-world experience from my 2024 LZ0 and how calibration updates are quietly refining the platform year over year.

Is 300,000 miles on a 3.0 Duramax realistic, or just a fantasy? In this episode of DemonWorks, we move past the internet rumors and break down real-world reliability data from over 200 owners. We reveal the actual failure rates of the LM2 and LZ0 engines, identifying what breaks, what lasts, and who is actually hitting high mileage.
Plus, we dive into your technical questions: How to properly configure your Banks iDash for towing vs. daily driving, diagnosing phantom idle vibrations on the LZ0, and why some owners are smelling dangerous exhaust fumes in the cab during regen.

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https://www.bankspower.com/demonworks hrtps://www.duramaxnews.com Will the 3.0 Duramax really last 150,000… 200,000… even 300,000 miles?Real owner mileage data from 200+ trucks.In this episode of the 3.0 Duramax Diesel Podcast, I break down actual owner-reported results from public forums and Facebook groups to answer the biggest question I get asked:👉 How long does the 3.0 Duramax REALLY last?This discussion is based on documented mileage reports, not hearsay. We analyze what’s actually failing, what isn’t, and why Facebook can make reliability look worse than it really is.🚛 What We Cover in This Episode✅ Can the 3.0 Duramax realistically reach 150K, 200K, or 300K miles✅ Results from 200+ owner-reported trucks (LM2 & LZ0)✅ Common issues vs. rare failures✅ Why most problems are system-level, not engine failures✅ Real high-mileage examples (200K–300K+ trucks still running)✅ Why social media amplifies failures — not failure rates🔧 Listener Questions AnsweredBanks iDash Setup (3.0 Duramax)• What data actually matters• Best gauge layouts for daily driving vs towing• Regen tracking, EGTs, oil pressure, air density explainedIdle Vibration on LZ0• Why vibration at idle happens• GM’s diagnostic approach• Engine mounts, exhaust contact, injector balance & fuelingExhaust Smell in the Cab• Why exhaust fumes are more noticeable during regen• Common leak points (turbo clamp, DPF joints, backpressure valve)• What to check and when to involve the dealer🧠 Bottom LineThe data shows the 3.0 Duramax engine itself is not the weak link.High-mileage trucks already exist — they’re just quieter than the complaint posts.The real question isn’t “Will it last?”It’s “How much modern diesel complexity and downtime are you willing to tolerate?”🔗 Helpful Links & Resources• Demon Works YouTube Channel• Duramax News Blog: https://duramaxnews.com• Demon Works Shop: https://demonworkshop.com• Email questions via the links in the description📩 Have a question you want answered on the podcast?Drop it in the comments or send it through DuramaxNews.com.👉 Subscribe for weekly 3.0 Duramax tech, diagnostics, and real dealership insight.ACDelco 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 NAMEFuel 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, you’ll learn exactly what changed from the Gen 2 to Gen 3 10L80 valve body and why it matters for LM2 & LZ0 Duramax owners. https://www.demonworkshop.com https:///www.duramaxnews.comGen 2 valve body failures (wear, TCC shudder, wheel lock recalls)What GM fixed with the Gen 3 valve body (25-NA-334)Why the Gen 3 is backward compatible — and what must be programmedNextGen Project Carbon valve body (what it is, who it’s for, lifetime warranty)Thermal bypass options: stock vs barbell vs PPE Full FlowTransmission temperature myths vs real-world testingHow to properly fill transmission fluid with a bypass valve installedWhy heat, towing, and ULV fluid matter long-termIf you own a 3.0 Duramax (3Max) and want reliability, smoother shifts, and real-world answers — this episode is for you.👉 Subscribe for weekly 3.0 Duramax tech, diagnostics, and real dealership insight.ACDelco 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 NAMEFuel 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!

Aftermarket intakes on the 3.0 Duramax generate a lot of questions — and a lot of misinformation. In this episode, I answer the most common intake questions owners ask, including power gains, MAF accuracy, EGR interaction, MPG changes, intake design, and why sound doesn’t always equal airflow. This is a data-first, no-hype discussion focused on how the 3.0 Duramax actually uses airflow and sensor data to make decisions.https://www.demonworkshop.com/products/2020-2025-gm-3-0l-duramax-diesel-fuel-cap-173001000Amazon Fuel Cap: https://amzn.to/4iSznKiACDelco 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 NAMEFuel 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 Intake: https://amzn.to/4b6oy35K&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!

Do you really need an extended warranty when buying a vehicle?In this episode, a GM dealership technician breaks down how extended warranties actually work, the loopholes that can get claims denied, and what most dealers don’t tell you before you sign. From costly repairs to hidden contract traps, this episode will help you decide if an extended warranty is truly worth it for you.
https://www.demonworkshop.com