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Fresh Off The Press
2027 Gen 2 LZ0 Changes: A Deeper Look at What’s New on the 3.0L Duramax
The 2027 3.0L Duramax is getting more than a redesigned piston. Our early look at the Gen 2 LZ0 reveals changes to the turbocharger, fuel system, thrust bearings, charge air cooler, DEF system, electronics and more.
GM Identifies Potential ECM Software Issue Behind Multiple 2025 3.0L Duramax SUV Trouble Codes
GM has identified a potential ECM software anomaly affecting 2025 full-size SUVs equipped with the 3.0L LZ0 Duramax. The new bulletin addresses nine diagnostic trouble codes, including several related to fuel pressure regulation, and directs technicians to check for calibration updates before continuing conventional diagnostics.
Dexos2 vs. Dexos D: What Changed and What Comes Next for Diesel Engine Oil
GM's diesel oil specifications have evolved from dexos2 to dexos D, but the change involves much more than viscosity. Here's how the specifications differ, why modern diesel engines require increasingly specialized lubricants, and what upcoming changes could tell us about the future of diesel engine oil.
6.6L Duramax Diesel Engine
2027 Chevy Silverado HD Order Guide Is Out: L6P Duramax and L8S Gas Engine Changes Confirmed
The Big Change: L5P Becomes L6P / The Gas Engine Changes Too: L8T Becomes L8S
New GM Emissions Recall N242438500: 2024 L5P Duramax SCR Fault Detection
General Motors has launched a new emissions recall that affects certain 2024 Chevrolet Silverado HD and GMC Sierra HD trucks equipped with the 6.6L L5P Duramax. Recall ID: N242438500 Title: ECM OBD – Selective Catalyst Reduction (SCR) Fault Detection Release Date: November 2025 Applies To: 2024 Chevrolet Silverado 2500HD / 3500HD (L5P 6.6L Duramax) 2024 GMC Sierra 2500HD / 3500HD (L5P 6.6L Duramax) This is a voluntary emissions recall focused on the software that monitors
EPA Issues Guidance to Fix DEF Derates: What the New Rule Means for Your 3.0 Duramax
If you’ve been driving your 3.0 Duramax-equipped truck or SUV, you're likely familiar with the frustration of a Diesel Exhaust Fluid...
3.0L Duramax Diesel Engine
2027 Gen 2 LZ0 Changes: A Deeper Look at What’s New on the 3.0L Duramax
The 2027 3.0L Duramax is getting more than a redesigned piston. Our early look at the Gen 2 LZ0 reveals changes to the turbocharger, fuel system, thrust bearings, charge air cooler, DEF system, electronics and more.
Dexos2 vs. Dexos D: What Changed and What Comes Next for Diesel Engine Oil
GM's diesel oil specifications have evolved from dexos2 to dexos D, but the change involves much more than viscosity. Here's how the specifications differ, why modern diesel engines require increasingly specialized lubricants, and what upcoming changes could tell us about the future of diesel engine oil.
2026 vs. 2027 Chevy Silverado 1500: What Actually Changed?
The 2027 Chevy Silverado 1500 brings major changes to its engines, drivetrain, technology and off-road models. We compare the 2026 and 2027 trucks, including the 3.0L Duramax, Max Trailering changes, axle ratios and the extensively updated ZR2.
Other Diesel News
GM Google Gemini Update Now Available: How to Upgrade Your Duramax Truck’s Assistant (Step-by-Step Guide)
Google Gemini — the smarter, more conversational AI — is now rolling out to 2022+ Duramax trucks and other GM vehicles with Google Built-in. In this guide we break down exactly why you’ll want the upgrade, plus the official step-by-step process from GM Service Bulletin #26-NA-127 to check your Android version, update Maps & Assistant, and activate Gemini in minutes.
Ready to ditch the old Google Assistant for a much more capable co-pilot? Full guide and how-to inside.
LEGAL TO DELETE? NO. But, EPA Rescinds the 2009 Endangerment Finding: What It Actually Means for 3.0 Duramax Owners
The EPA has rescinded the 2009 Endangerment Finding, but what does that actually mean for diesel owners? Here’s a clear breakdown of how the change affects greenhouse gases, the Clean Air Act, and 3.0 Duramax emissions systems.
RECALL - Automatic Exterior Lights May Not Activate As Required
NOTE- Canadian Trucks Only N232431050-10: CMVSS Noncompliance Recall - Automatic Exterior Lights May Not Activate As Required - (Mar 26,...
Buyers Market -
2027 Gen 2 LZ0 Changes: A Deeper Look at What’s New on the 3.0L Duramax
The 2027 3.0L Duramax is getting more than a redesigned piston. Our early look at the Gen 2 LZ0 reveals changes to the turbocharger, fuel system, thrust bearings, charge air cooler, DEF system, electronics and more.
GM Identifies Potential ECM Software Issue Behind Multiple 2025 3.0L Duramax SUV Trouble Codes
GM has identified a potential ECM software anomaly affecting 2025 full-size SUVs equipped with the 3.0L LZ0 Duramax. The new bulletin addresses nine diagnostic trouble codes, including several related to fuel pressure regulation, and directs technicians to check for calibration updates before continuing conventional diagnostics.
Dexos2 vs. Dexos D: What Changed and What Comes Next for Diesel Engine Oil
GM's diesel oil specifications have evolved from dexos2 to dexos D, but the change involves much more than viscosity. Here's how the specifications differ, why modern diesel engines require increasingly specialized lubricants, and what upcoming changes could tell us about the future of diesel engine oil.
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