Expert Diesel Knowledge. Always Free.

Buyer’s Guides

Honest comparisons to help shop owners make confident purchasing decisions.

A Technician’s Guide to DPF Regens (And When to Avoid Forced Regens)

Noregon JPRO Professional: A Complete, Honest Evaluation

By the HDJ Buyer’s Guide Team Last Updated: September 2026 Noregon JPRO Professional is a multi-brand heavy-duty diagnostic platform that connects to a Class 6-8 truck and reads every onboard electronic module — engine, transmission, ABS, trailer ABS — from a single screen in about 60 seconds. Independent trade-press coverage has described it as the

Noregon JPRO Professional: A Complete, Honest Evaluation Read More »