A forum community dedicated to Chevy and GMC Duramax diesel owners and enthusiasts. Come join the discussion about modifications, towing, classifieds, troubleshooting, maintenance, and more!

Nov 25, 2024 · I have a 2022 3500 dually Duramax now and haven't had any problems so far and was wondering if there is any advantage to buying a new truck? Thanks in advance for any pointers! Roy

I bought a 2025 GMC Sierra 1500 Denali Ultimate Duramax and overall, I love the truck. It's an absolute joy to drive, and the engine is fantastic. Unfortunately, with barely 3k miles on the truck, I've had …

Feb 10, 2025 · As the title states, looking to get some real-world feedback from 2024 and/or 2025 Duramax owners. A little backstory. I had a 2024 2500LT. Beautiful truck. Zero issues. Sold with 6k …

Aug 29, 2025 · What’s the Best oil for L5P duramax, I currently run Rotella, and heard royal purple wasn’t as good as they use to be, what’s better than Rotella. Had a tick back at 70k miles and it was …

Jan 13, 2024 · I'm in the market to immediately buy a 2018-2021 SRW DieseI truck. I recently retired and for the past 5 years I've been planning on buying a 3500 SRW diesel Chevy Duramax or Dodge …

Apr 28, 2024 · Hello everyone, I'm considering buying a new 1500 Duramax (LZ0). However, I'm a bit confused about fueling. GM recommends top-tier fuel. I'm in SoCal, and all the gas stations near me …

Mar 17, 2025 · Hello, new to this forum. Thinking about purchasing a 23 or 24 GMC Sierra with the 3.0 Duramax. I drive about 10 miles each way to work, mixed freeway and city. Reading about several …

Jun 22, 2022 · The DEF tank heater may be faulty on some 2020-2021 Silverado 1500, Silverado 2500HD/3500HD, Sierra 1500, Sierra 2500HD/3500HD; and 2021 Tahoe, Suburban, Yukon and …

Dec 11, 2021 · A forum community dedicated to Chevy and GMC Duramax diesel owners and enthusiasts. Come join the discussion about modifications, towing, classifieds, troubleshooting, …