The Best Used Diesel Truck To Buy — What Is

Known for bottom-end failures and emissions system issues.

Often cited for catastrophic failures related to head bolts, EGR coolers, and fuel systems. what is the best used diesel truck to buy

Budget and maintenance history are the biggest factors in real-world satisfaction. Known for bottom-end failures and emissions system issues

For those who don't need a heavy-duty rig, the 3.0L inline-six Duramax offers a smooth, quiet ride and exceptional fuel economy—often exceeding 30 MPG on the highway . Owners from Capital One and Octane GMC praise its reliability and advanced tech compared to older models. For those who don't need a heavy-duty rig, the 3

The LBZ engine is widely regarded as the most reliable Duramax because it was the last version produced before major emissions controls were implemented. It is frequently paired with the robust Allison 1000 six-speed automatic transmission , making it a favorite for heavy towing.

“The majority of votes you will get is either a 12v dodge or a 7.3 powerstroke. Both... will most likely have rust issues [up north].” Reddit · r/Diesel · 8 years ago Best Years Common Platform Notable Features 5.9L Cummins 2003–2007 Dodge Ram 2500 /3500 Simple, no DPF/DEF, highly modifiable. 6.6L Duramax LBZ 2006–2007 Chevy/ GMC 2500HD Last "pre-emissions" Duramax; paired with Allison trans. 7.3L Power Stroke 1999–2003 Ford F-250 / F-350 Massive longevity, simple mechanical design. 6.7L Power Stroke 2011–2016 Ford Super Duty High power; huge reliability improvement over 6.0L/6.4L. 3.0L Duramax 2020–Present Silverado / Sierra 1500 30+ MPG highway, smooth inline-six. What to Watch Out For (Avoid or Inspect Heavily)