DemonWorks - 3.0 Duramax Diesel LM2 LZ0

@UCe95C3kNd6OXV9KFwi1MluA - 30.9K subscribers

DemonWorks is built for 3.0 Duramax owners who want more than vague answers and guesswork. Founded by a GM technician and owner, DemonWorks delivers step-by-step maintenance guides, honest product reviews, deep-dive troubleshooting, and real-world testing. Our mission is simple: helping 3.0 Duramax owners maintain, troubleshoot, and upgrade their trucks with real GM tech expertise — so they can extend the life of their Duramax. This is why we say: DemonWorks — Diesel Tech, Beyond the Manual. DemonWorks LLC. 2024 Silverado 3.0 Duramax ZR2

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3.0 Duramax Oil Pan Drain + Capacity Test: New Design vs Old

3.0 Duramax Oil Pan Drain + Capacity Test: New Design vs Old DemonWorks - 3.0 Duramax Diesel LM2 LZ0

2.8K views - 5 days ago

3.0 Duramax Oil Pan Drainage Test: New Design vs Old - See The Difference

3.0 Duramax Oil Pan Drainage Test: New Design vs Old - See The Difference DemonWorks - 3.0 Duramax Diesel LM2 LZ0

1 week ago

GM's New 3.0 Duramax Oil Pan Design Solves a Big Problem

GM's New 3.0 Duramax Oil Pan Design Solves a Big Problem DemonWorks - 3.0 Duramax Diesel LM2 LZ0

9.6K views - 1 week ago

DIY 3.0 / 6.6 Duramax Fuel Filter Change

DIY 3.0 / 6.6 Duramax Fuel Filter Change DemonWorks - 3.0 Duramax Diesel LM2 LZ0

4.8K views - 1 week ago

The Problem With Budget 3.0 Duramax Resonator Delete Pipe

The Problem With Budget 3.0 Duramax Resonator Delete Pipe DemonWorks - 3.0 Duramax Diesel LM2 LZ0

3.9K views - 2 weeks ago

DemonWorks Behind The Scenes - January 2026 Members Only Video

DemonWorks Behind The Scenes - January 2026 Members Only Video DemonWorks - 3.0 Duramax Diesel LM2 LZ0

3 weeks ago

BIGGER ISSUE THAN I THOUGHT How to Spot FAKE PPE Oil Filters Amazon + Ebay

BIGGER ISSUE THAN I THOUGHT How to Spot FAKE PPE Oil Filters Amazon + Ebay DemonWorks - 3.0 Duramax Diesel LM2 LZ0

4.5K views - 1 month ago

HANDS ON w/ NEW for 2026 Kingbolen S608 Scan Tool - 3.0 Duramax Diesel

HANDS ON w/ NEW for 2026 Kingbolen S608 Scan Tool - 3.0 Duramax Diesel DemonWorks - 3.0 Duramax Diesel LM2 LZ0

1.7K views - 1 month ago

MOBIL 1 ESP 0w30 vs 0w20 - 3.0 Duramax Oil Analysis

MOBIL 1 ESP 0w30 vs 0w20 - 3.0 Duramax Oil Analysis DemonWorks - 3.0 Duramax Diesel LM2 LZ0

14.4K views - 1 month ago

FAKE Oil Filter WILL DESTROY YOUR 3.0 Duramax Engine

FAKE Oil Filter WILL DESTROY YOUR 3.0 Duramax Engine DemonWorks - 3.0 Duramax Diesel LM2 LZ0

7.7K views - 1 month ago

Thank You Members - Behind The Scenes - PPE Knock Off / AFE Intake ...

Thank You Members - Behind The Scenes - PPE Knock Off / AFE Intake ... DemonWorks - 3.0 Duramax Diesel LM2 LZ0

1 month ago

Blow By From YOUR 3.0 Duramax Diesel ? This Explains it ALL

Blow By From YOUR 3.0 Duramax Diesel ? This Explains it ALL DemonWorks - 3.0 Duramax Diesel LM2 LZ0

15.9K views - 2 months ago

This Is How Fuel Really Flows Through the 3.0 Duramax

This Is How Fuel Really Flows Through the 3.0 Duramax DemonWorks - 3.0 Duramax Diesel LM2 LZ0

5.8K views - 2 months ago

This Is BAD! DEF in FUEL - CRITICAL Steps To Save $$$

This Is BAD! DEF in FUEL - CRITICAL Steps To Save $$$ DemonWorks - 3.0 Duramax Diesel LM2 LZ0

6.9K views - 2 months ago

LZ0 Duramax Engines Are Still Failing — Check This Before It’s Too Late

LZ0 Duramax Engines Are Still Failing — Check This Before It’s Too Late DemonWorks - 3.0 Duramax Diesel LM2 LZ0

22.1K views - 2 months ago

Is the Edge EZX Worth It on the 3.0 Duramax? My Honest Opinion

Is the Edge EZX Worth It on the 3.0 Duramax? My Honest Opinion DemonWorks - 3.0 Duramax Diesel LM2 LZ0

7.9K views - 2 months ago

I Exceeded the Limits of my LZ0 w/ Mods - 3.0 Duramax Diesel

I Exceeded the Limits of my LZ0 w/ Mods - 3.0 Duramax Diesel DemonWorks - 3.0 Duramax Diesel LM2 LZ0

8.4K views - 2 months ago

Thank You Members - Behind The Scenes @ What is In The Works

Thank You Members - Behind The Scenes @ What is In The Works DemonWorks - 3.0 Duramax Diesel LM2 LZ0

2 months ago

Is the Edge EZX Worth It for the 3.0 Duramax? Real Driving Tests & Data

Is the Edge EZX Worth It for the 3.0 Duramax? Real Driving Tests & Data DemonWorks - 3.0 Duramax Diesel LM2 LZ0

14.3K views - 3 months ago

How To Install EDGE EZX 3.0 Duramax LZ0

How To Install EDGE EZX 3.0 Duramax LZ0 DemonWorks - 3.0 Duramax Diesel LM2 LZ0

10.6K views - 3 months ago

GM Technician Warns: This LZ0 Mod Will Void Your Warranty (Do It Anyway)

GM Technician Warns: This LZ0 Mod Will Void Your Warranty (Do It Anyway) DemonWorks - 3.0 Duramax Diesel LM2 LZ0

11.7K views - 3 months ago

LZ0 Engine Failure Build Dates ?

LZ0 Engine Failure Build Dates ? DemonWorks - 3.0 Duramax Diesel LM2 LZ0

10.6K views - 3 months ago

The Oil GM Doesn’t Recommend — But Might Be the Best for Your 3.0 Duramax

The Oil GM Doesn’t Recommend — But Might Be the Best for Your 3.0 Duramax DemonWorks - 3.0 Duramax Diesel LM2 LZ0

23.5K views - 3 months ago

GM Quietly Fixed The Towing DEF Warning Issue ?

GM Quietly Fixed The Towing DEF Warning Issue ? DemonWorks - 3.0 Duramax Diesel LM2 LZ0

10.1K views - 3 months ago

COMPOUND TURBOS on 3.0 Duramax Diesel at SEMA 2025

COMPOUND TURBOS on 3.0 Duramax Diesel at SEMA 2025 DemonWorks - 3.0 Duramax Diesel LM2 LZ0

9.5K views - 3 months ago

Did GM Just Fix the 10L80/10L90? Gen-3 Valve Body Explained

Did GM Just Fix the 10L80/10L90? Gen-3 Valve Body Explained DemonWorks - 3.0 Duramax Diesel LM2 LZ0

10.6K views - 3 months ago

Silverado 1500 Tallest Tire w/o Lift 2024 ZR2

Silverado 1500 Tallest Tire w/o Lift 2024 ZR2 DemonWorks - 3.0 Duramax Diesel LM2 LZ0

5.5K views - 3 months ago

LZ0 Engines ARE FAILING - The Details - 25-NA-307 3.0 Duramax Diesel

LZ0 Engines ARE FAILING - The Details - 25-NA-307 3.0 Duramax Diesel DemonWorks - 3.0 Duramax Diesel LM2 LZ0

25.7K views - 3 months ago

RESULTS ARE IN! Safe to run 5w30 in 3.0 Duramax Diesel?

RESULTS ARE IN! Safe to run 5w30 in 3.0 Duramax Diesel? DemonWorks - 3.0 Duramax Diesel LM2 LZ0

22.2K views - 4 months ago

TESTED: HIGH OUTPUT Derringer on Duramax Diesel

TESTED: HIGH OUTPUT Derringer on Duramax Diesel DemonWorks - 3.0 Duramax Diesel LM2 LZ0

6K views - 5 months ago

3.0 Duramax Coolant Valve: GM Just Dropped New Special Coverage (N252508341) LM2

3.0 Duramax Coolant Valve: GM Just Dropped New Special Coverage (N252508341) LM2 DemonWorks - 3.0 Duramax Diesel LM2 LZ0

9.2K views - 5 months ago

LZ0 Duramax Owners: GM Announces New Coolant Valve Coverage (N252508340)

LZ0 Duramax Owners: GM Announces New Coolant Valve Coverage (N252508340) DemonWorks - 3.0 Duramax Diesel LM2 LZ0

5.6K views - 5 months ago

iOS 26 CarPlay Update Has 2 Awesome Surprises + 1 FAIL

iOS 26 CarPlay Update Has 2 Awesome Surprises + 1 FAIL DemonWorks - 3.0 Duramax Diesel LM2 LZ0

9.2K views - 5 months ago

How To Fill Def Fluid For Diesel Beginners / New Owners 2025 Duramax

How To Fill Def Fluid For Diesel Beginners / New Owners 2025 Duramax DemonWorks - 3.0 Duramax Diesel LM2 LZ0

21.4K views - 5 months ago

What makes the New 3.0 Duramax Better? LZ0 VS LM2

What makes the New 3.0 Duramax Better? LZ0 VS LM2 DemonWorks - 3.0 Duramax Diesel LM2 LZ0

34.3K views - 6 months ago

TEARDOWN 100K Mile 3.0 Duramax LM2 – Stuck Rings, Leaks, and Timing Chain Issues

TEARDOWN 100K Mile 3.0 Duramax LM2 – Stuck Rings, Leaks, and Timing Chain Issues DemonWorks - 3.0 Duramax Diesel LM2 LZ0

30.3K views - 6 months ago

3.0 Duramax Charge Air Cooler Radiator Swap | PPE Install Breakdown

3.0 Duramax Charge Air Cooler Radiator Swap | PPE Install Breakdown DemonWorks - 3.0 Duramax Diesel LM2 LZ0

6.3K views - 6 months ago

Get Rid of That Gross AC Smell Fast With Frigi Fresh Odor Eliminator

Get Rid of That Gross AC Smell Fast With Frigi Fresh Odor Eliminator DemonWorks - 3.0 Duramax Diesel LM2 LZ0

6.1K views - 6 months ago

3.0 Duramax Diesel: 10L80 Transmission Service with Filter

3.0 Duramax Diesel: 10L80 Transmission Service with Filter DemonWorks - 3.0 Duramax Diesel LM2 LZ0

29.8K views - 6 months ago

Replace Your Dirty Air Filter with a NEW One on a 3.0 Duramax Diesel

Replace Your Dirty Air Filter with a NEW One on a 3.0 Duramax Diesel DemonWorks - 3.0 Duramax Diesel LM2 LZ0

6.9K views - 6 months ago

How To: Transfer case Service - Silverado / Sierra 1500 GM Truck 2019+

How To: Transfer case Service - Silverado / Sierra 1500 GM Truck 2019+ DemonWorks - 3.0 Duramax Diesel LM2 LZ0

9K views - 6 months ago

How-To 3.0 Duramax Engine Oil Change + Drain Plug Upgrade

How-To 3.0 Duramax Engine Oil Change + Drain Plug Upgrade DemonWorks - 3.0 Duramax Diesel LM2 LZ0

26.2K views - 6 months ago

Musty AC Smell? Silverado Cabin Filter Replacement (2019+)

Musty AC Smell? Silverado Cabin Filter Replacement (2019+) DemonWorks - 3.0 Duramax Diesel LM2 LZ0

4.8K views - 6 months ago

Banks iDash Pro Update Via App Unlocks New Parameters

Banks iDash Pro Update Via App Unlocks New Parameters DemonWorks - 3.0 Duramax Diesel LM2 LZ0

4.2K views - 7 months ago

10L80 Transmission Bypass Valve MOD - Barbell 10L90

10L80 Transmission Bypass Valve MOD - Barbell 10L90 DemonWorks - 3.0 Duramax Diesel LM2 LZ0

12.5K views - 7 months ago

Don't Let High Temps KILL Your 10L80 Transmission or Valve Body

Don't Let High Temps KILL Your 10L80 Transmission or Valve Body DemonWorks - 3.0 Duramax Diesel LM2 LZ0

15.9K views - 7 months ago

HOW TO: 3.0 Duramax DEF INJECTOR #2 Replacement

HOW TO: 3.0 Duramax DEF INJECTOR #2 Replacement DemonWorks - 3.0 Duramax Diesel LM2 LZ0

7.9K views - 7 months ago

Don't Waste Time! Fast & EASY Truck Diagnostics with Mucar892BT

Don't Waste Time! Fast & EASY Truck Diagnostics with Mucar892BT DemonWorks - 3.0 Duramax Diesel LM2 LZ0

2.5K views - 7 months ago

Why Does This 3.0 Duramax Repair Cost $10,000+?

Why Does This 3.0 Duramax Repair Cost $10,000+? DemonWorks - 3.0 Duramax Diesel LM2 LZ0

19.9K views - 7 months ago

HOW Duramax Fuel Filters Work + Why Quality Is CRITICAL

HOW Duramax Fuel Filters Work + Why Quality Is CRITICAL DemonWorks - 3.0 Duramax Diesel LM2 LZ0

21K views - 8 months ago

I STOPPED USING 0w20 - My Oil Analysis said 5w30 is Safer

I STOPPED USING 0w20 - My Oil Analysis said 5w30 is Safer DemonWorks - 3.0 Duramax Diesel LM2 LZ0

50.9K views - 9 months ago

Of all 3.0 Duramax Mods - This is my favorite

Of all 3.0 Duramax Mods - This is my favorite DemonWorks - 3.0 Duramax Diesel LM2 LZ0

51.4K views - 9 months ago

IT'S OFFICIAL 597,000+ Potential Engines Need Replacement

IT'S OFFICIAL 597,000+ Potential Engines Need Replacement DemonWorks - 3.0 Duramax Diesel LM2 LZ0

14.4K views - 9 months ago

Pro Level Scan Tool - Kingbolen K10 Elite Review on Silverado Duramax

Pro Level Scan Tool - Kingbolen K10 Elite Review on Silverado Duramax DemonWorks - 3.0 Duramax Diesel LM2 LZ0

3.3K views - 9 months ago

Mobile Regen Using Banks idash On 3.0 Duramax Diesel

Mobile Regen Using Banks idash On 3.0 Duramax Diesel DemonWorks - 3.0 Duramax Diesel LM2 LZ0

5.4K views - 10 months ago

Banks iDash Stationary Regen on 3.0 Duramax Diesel LZ0

Banks iDash Stationary Regen on 3.0 Duramax Diesel LZ0 DemonWorks - 3.0 Duramax Diesel LM2 LZ0

16.2K views - 10 months ago

Is This Tool The Best For Silverado GM Car Enthusiasts? Soloscan by Kingbolen Scan tool

Is This Tool The Best For Silverado GM Car Enthusiasts? Soloscan by Kingbolen Scan tool DemonWorks - 3.0 Duramax Diesel LM2 LZ0

4.8K views - 10 months ago

3.0 Duramax $10k Timing Chain Failure — Updated Design vs Old

3.0 Duramax $10k Timing Chain Failure — Updated Design vs Old DemonWorks - 3.0 Duramax Diesel LM2 LZ0

83.9K views - 10 months ago

P04FB Crankcase Pressure Sensor - 3.0 Duramax Diesel

P04FB Crankcase Pressure Sensor - 3.0 Duramax Diesel DemonWorks - 3.0 Duramax Diesel LM2 LZ0

25.4K views - 11 months ago

Water Pump + Belt Replacement 3.0 Duramax Diesel 2020 LM2

Water Pump + Belt Replacement 3.0 Duramax Diesel 2020 LM2 DemonWorks - 3.0 Duramax Diesel LM2 LZ0

8.7K views - 11 months ago