Long-form guides

Buyer guides & tech walkthroughs.

Pick the right tool the first time. Each guide is written by a senior diesel tech and updated for current model years.

Buying decisions

Pick the right tool for your bay.

If you're sizing up a purchase or comparing platforms, start here.

Fleet Diagnostics

Best Diagnostic Tools for Mixed Fleets

Independent shops solve mixed-fleet coverage with one solid multi-brand platform plus one or two OEM titles for the brands they see most.…

22 min read

In-bay walkthroughs

Procedures & troubleshooting.

When the truck is on the hook and the dash is yelling. Senior-tech procedures for the situations that show up in real bays.

Coming soon

More guides in the pipeline.

  • Cummins INSITE Pro vs Lite — buying guide
  • TEXA vs Jaltest vs JPRO — real shop comparison
  • DPF regen troubleshooting — when it won't start
  • SCR / DEF dosing system diagnosis
  • Detroit DD15 ash reset — complete walkthrough
  • PACCAR MX-13 forced regen procedure

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