GM has redesigned the 3.0 Duramax (LM2) (LZ0) engine oil pan, introducing a relocated drain plug, revised sump geometry, and a new oil pickup tube. The updated design improves oil drainage during service and refines internal oil control, while maintaining overall capacity. Here’s what changed, why it matters, and what owners need to know about compatibility before ordering parts.

The EPA has rescinded the 2009 Endangerment Finding, but what does that actually mean for diesel owners?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.

GM Bulletin 26-NA-033 explains ECM calibration updates for 2025 LZ0 Duramax SUVs addressing MIL warnings and multiple DTCs caused by software anomalies.

GM has quietly brought back a feature that a lot of truck owners asked for — the Trailer Light Test  inside the myChevrolet  and myGMC  mobile apps. If you tow regularly, this is one of those small updates that actually makes life easier. What Is the Trailer Light Test? The Trailer Light Test allows you to cycle your trailer lights directly from your phone , so you can stand behind the trailer and confirm everything is working — without climbing in and out of the cab. The tes

When news broke that OXE Marine and GM Marine  had signed a development agreement to use Duramax engines  in a new generation of diesel outboards, most people saw it as a marine story. For 3.0 Duramax owners, it is something else entirely: It’s a strong signal that GM sees the LZ0 3.0L Duramax inline-six  as a long-term platform, not a short-lived experiment. In this article, we’ll break down what the agreement actually says, why it matters for truck and SUV owners, and how a

Release:  September 2025 • Bulletin:  N252508341 • Applies to (LM2 3.0L Duramax):Chevrolet:  Silverado 1500 (2021–2022), Suburban...

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...

The landscape of automotive emissions is constantly evolving, and for Duramax diesel enthusiasts, a significant change is on the horizon....

The time has come, we finally get to see the LZ0 engine make it's way into the 2025 SUV's but unfortunately Cadillac felt the demand was...

A technical service bulletin #22-NA-128 addressing a malfunction indicator lamp (MIL) illumination issue has been updated to now include...

I am happy to inform you there is finally a fix to this stop/start issue. I personally experienced this with my 2023 LZ0 and I mentioned...

In the latest video upload from Demonworks, Greg discusses every single part available for the 3.0 Duramax Diesel. With a full...

Recently I installed the Banks Stealth Pod on my 2024 Silverado ZR2 with the 3.0 Duramax Diesel. Shortly after, I upgraded to the Dual...

After purchasing both fuel filters from Amazon, I decided to cut them open and really see why 1 filter was $20 cheaper than the other. I...

PPE Charge Air COoler Radiator for 3.0 Duramax Diesel Trucks LM2 LZ0

The most talked about, no, the most complained about item on the class leading 3.0 Duramax diesel is the oil pump driven by a wet belt....

In a recent video on YouTube, DemonWorks cuts open 6 of the most popular engine oil filters for the 3.0 Duramax and 2.7L TurboMax...

2022+ 10L80 Transmissions have the revised oil pump drive gear 2020 - 2021 Silverado / Sierra equipped with the 10L80 transmission Owners...