Learn the Systems
Plain-language diagnostic guides and how-tos on diesel and automotive systems — written by the techs who fix them every day.
Towing With a Diesel: Payload, GCWR, and Staying Safe
Diesels are built to tow — but the truck's rating, not the engine's torque, is your real limit. Here's how to read the numbers and tow without cooking anything.
Exhaust Brakes and Engine Braking, Explained
That diesel "hold-back" on a downgrade isn't magic — it's an exhaust brake doing work your service brakes would otherwise do. Here's how it works and why it matters.
Diesel Transmission Care: Fluid, Heat, and Towing
On a torquey diesel, the transmission is often the weak link — and heat is what kills it. Here's how to make yours last, especially if you tow or tune.
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