CDL Pre-Trip: Fluid Levels & Steering System Explained 📄 YouTube Description: Master your CDL Pre-Trip Inspection with this step-by-step breakdown of fluid levels, air leaks, and the steering system. In this lesson, we cover exactly what examiners want to hear — from identifying leaks to checking the power steering reservoir and gearbox. Whether you're a first-time CDL student or brushing up for your retest, this video will help you speak with confidence and gain easy points during the engine c