CONTENTS / JUNE 2020 p. 12 When balancing tires, all positions should be balanced, not just the steers. P. 12 » O N T H E CO V E R Vehicles Evaluating on-tire balancing options From wheel weights and internal compounds to balance rings, how to decide what options are best for your fleet. » Indicators of tire imbalance issues » On-vehicle versus off-vehicle balancing p. 18 In The Bay Secrets of fleets with stellar safety ratings Establishing a true safety culture requires accountability, empowerment, and airtight communication - as well as a clear understanding of the common causes of roadside inspection violations. » Commonly overlooked areas of inspection p. 26 Analyzing past failures is a big part of creating a safety culture. P. 18 Shop Operations Considerations for purchasing new or used trucks VIEWS FROM THE EXPERTS 34 Diagnostics Adjusting parameters with an aftermarket diagnostic solution By Gregg Wartgow CONTRIBUTING EDITOR The best option comes down to each fleet's specific needs. » Options for leasing commercial vehicles 36 Management The hardest defects to see By Joel Levitt SPRINGFIELD RESOURCES SPOTLIGHT ON... 46 Guest Editorial 30 Look on the bright side Marketability and serviceability of last-mile delivery vehicles By Beth Grime-Mooney The LED has been established as the lighting technology of choice for the commercial vehicle industry due to its numerous benefits over incandescent lighting. 32 Engine oils and optimized DPF performance How improved formulations for engine oils are helping to keep DPFs and aftertreatment systems running longer and more efficiently. DANA INCORPORATED The longevity of LEDs is superior to incandescent bulbs. P. 30 Want to contribute? Contact us at editor@VehicleServicePros.com D E PA R T M E N T S FROM THE EDITORS 8 Uptime Riding the storm out 10 Editor's Note Exceptional maintenance for driver retention 4 Fleet Maintenance | June 2020 37 Fleet Parts & Components What's new in products for more efficient fleet operation. 40 Tools & Equipment A roundup of the latest tool and equipment offerings. On the cover: 1208209545 | Smederevac | Getty Images 45 Classifieds