Edge Products has introduced the new CTS4 monitor with a larger 5.5-inch touchscreen, 3.4 times the processing power, faster startup times and improved gauge responsiveness. Here's what's changed and what Duramax owners should know.

P2C7A is a frequent trouble code on the LM2 and LZ0 Duramax. GM's diagnostic guidance covers several possible causes, while firsthand repair experience points to recurring problems with exhaust clamps, backpressure valve welds and DEF injector performance.

GM has updated its 3.0L Duramax turbocharger replacement bulletin to specify the same oil feed pipe found on the 2027 LZ0. Could the revised component address concerns about turbocharger oil flow?

GM has finally identified specific build dates in its 3.0 Duramax LZ0 thrust bearing bulletin. The October 13, 2026 revision lists vehicles built between May 1 and September 1, 2025, giving owners a long-awaited production window to examine.

DuramaxNews has uncovered three surprising details in the 2027 Chevy Silverado 1500 owner's manual: a possible increase to 8 quarts of oil for the 3.0L Duramax diesel, revised DEF speed restrictions that could limit trucks to 45 mph instead of 5 mph, and references to a potential new key card system. Here's what we discovered and what it could mean for future Silverado owners.

GM has updated a service bulletin covering exhaust odors inside 2025–2026 Silverado and Sierra HD trucks equipped with the L5P Duramax. A leaking EGR cooler bypass valve shaft seal may be responsible, and technicians may also encounter DTC P2463.

GM has released a new bulletin clarifying whether red-dyed diesel fuel affects Duramax warranty coverage. Learn the differences between on-road and off-road diesel, No. 1 and No. 2 diesel, winterized fuel, sulfur content, and what to check before filling your truck.

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 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.

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.

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.

The wait is over. General Motors officially unveiled its all-new 8.3L Duramax Turbo-Diesel V8 on September 24, 2026, and the numbers are substantial: 555 horsepower and 1,230 lb-ft of torque. The new diesel will be available in the 2027 Chevrolet Silverado HD and GMC Sierra HD, which are expected to begin arriving at U.S. dealerships in late 2026. But the biggest story may not be the power numbers. This isn't simply another update to the familiar 6.6L Duramax. GM describes th

GM is allocating available oil supplies to dealers as a global Group III base-oil shortage puts pressure on low-viscosity synthetic oils. Here's what Duramax owners — including those using AMSOIL, Schaeffer's and other specialty oils — should know.

Could upcoming EPA emissions requirements have influenced the updated 2027 3.0L Duramax LZ0? We examine the new piston, turbo vane, NOx sensor and DEF-related changes—and what they may reveal about GM’s emissions strategy.

The 2027 3.0L Duramax returns with the same 305 horsepower and 495 lb-ft of torque, but it isn’t unchanged. GM has confirmed updates to the pistons, turbo vanes, NOx sensor, sealing and fuel-injector corrosion protection, along with revised DEF indicators and an available 34-gallon fuel tank. There’s also a surprise: maximum Duramax towing drops from 13,300 pounds for 2026 to 12,000 pounds for the 2027 Silverado.