Alright, let’s talk about this Diesel Laptops handheld scanner. I’ve got a small fleet with Cummins, Detroit, and Volvo engines, and this thing has been a lifesaver for pinpointing issues and forcing regens. It’s user-friendly, comes with multiple connectors, and just works—no fuss.

But here’s the kicker: some folks are having nightmares with it. One guy bought it for his Peterbilt after being assured it’d work… spoiler alert: it didn’t. Even after updates, nada. Tech support basically shrugged. Another user tried it on a Cummins-powered RV and a Chevy Kodiak—total dud. Connects but won’t scan codes? Useless.

Then there’s the tech support circus. One reviewer spent two hours updating only for the tool to still say 'not supported' on six different trucks. Others got passed around like a hot potato—remove the SD card, download new software, maybe chat with IT? Hard pass.

Bottom line: If it works for your rig (like it did for me), it’s gold. But if not? You’re in for frustration and returns. Maybe roll the dice if you’re feeling lucky.