The 3.0 Duramax engine was designed and built to last. It has a very robust powertrain that allows it to run for many years without much maintenance. However, just like any other vehicle, if you neglect the care of your Duramax truck, you can find yourself with costly repair bills. Here are some common problems with 3.0 Duramax engines in 2023. 1. About a month ago, I had the DPF light on. Took the car to VW dealer near home, but was told I need to do regeneration (drive at around 2k-3k RPM for some distance on highway). I did this, the light would turn off, but then next time I start the engine and drive, the light is back on immediately. AdBlue is added to your exhaust and mixes with the fumes your car produces. It reacts with nitrogen oxide gas (NOx gas) created by your engine and breaks it down into harmless nitrogen and water vapour. NOx gases cause respiratory problems and contribute to the formation of particulate matter, smog, acid rain and ground level ozone. That does mean premature wear and tear, worse mpg, and general issues with dpf getting clogged up. As long as you're doing that occasional longer journey to clear up the dpf you should be fine. I know many a people that own pre DPF diesels that mainly do short journeys and they reached well over 100k miles without engine issues. Regularly drive your vehicle at higher (but legal!) speeds on a motorway for at least 20 minutes. This allows the engine to reach the temperature required for DPF regenerationRegularly service your vehicle, ensuring oil and filters are changed as per the manufacturer’s guidelinesNever ignore the DPF light. .

how long can you drive with dpf light on