Let me start by saying this tool has serious potential—when it works. I’ve used it on my fleet of semis (Cummins, Detroit 60, and Volvo engines), and it’s been a lifesaver for pinpointing small issues and forcing DPF regens. The interface is intuitive, and the sturdy case with multiple connectors makes it feel like a pro-grade tool.

But here’s the catch: compatibility is a gamble. Like some reviewers, I had trucks where it just flashed ‘Not Supported’ despite claims otherwise. The forced regen feature? Hit or miss. One day it’s heroically clearing codes on my International ProStar, the next it’s useless on my buddy’s Peterbilt—even after updates.

The hardware itself is impressive—solid buttons, clear screen—but the software quirks are maddening. Tech support had me do a 2-hour update that changed nothing. If your vehicle’s on their ‘supported’ list, you might love it. But if not? You’re stuck with a very expensive code reader that occasionally refuses to connect without cable jiggling voodoo.

Final verdict: Great for some diesels (when it works), but don’t trust the compatibility promises blindly. Check forums for your specific engine first.