Kenworth AC Blows Warm? 10 Common Causes and Fixes
Kenworth AC blowing warm instead of cold? Learn the most common causes, how to diagnose them, and possible fixes.
What Is a Bill of Lading (BOL) in Trucking?
Learn what a Bill of Lading (BOL) is in trucking, why it’s important, what information it contains, and how CDL drivers use it every day.
Best Bluetooth Headset for Truck Drivers
Looking for the best Bluetooth headset for truck drivers? Here’s what I look for after years behind the wheel and the headset I’d recommend today.
What Are Glad Hands on a Semi Truck?
Learn what glad hands are, how they work, why they matter, how to connect them properly, and common mistakes every CDL driver should avoid.
What Does the Air Filter Restriction Gauge Mean on a Semi Truck?
That little air filter gauge can warn you before a dirty filter costs power. Here’s how to read it and when the filter needs attention.
Semi Truck Fuel Filter Restriction Gauge Explained
A rising fuel restriction gauge can point to a plugged filter before your truck loses power. Here’s what the reading is telling you.
What Is a Grain Auger? How It Works and Why Farmers Use One
Learn what a grain auger is, how it works, what powers it, and why farmers use grain augers to move corn and other grain.
What Is Normal Oil Pressure on a Semi Truck?
Learn what’s considered normal oil pressure on a semi truck, what changes with engine temperature and RPM, and when to worry.
Things CDL School Didn’t Prepare Me For
CDL school taught me how to pass my test. These are the real-world lessons I didn’t learn until I started driving professionally.
What Is Landing Gear on a Semi Trailer?
Learn what landing gear is on a semi trailer, how it works, why it matters, how to inspect it, and common mistakes CDL drivers should avoid.
Do Truck Drivers Still Use CB Radios? What They’re Used For Today
CB radios never completely disappeared from trucking. Here’s who still uses them, why Channel 19 matters, and where a CB still comes in handy.
CDL Vehicle Inspection Practice Test
Practice for your CDL pre-trip inspection exam with this free 25-question CDL Vehicle Inspection Practice Test featuring instant scoring, detailed explanations, and realistic inspection questions.