Traversing through congested urban environments can wildly impact component wear and maintenance intervals. Here's a guide to tame downtime. By Gregg Wartgow [ IN VEHICLE ] T here has been a booming trend toward last-mile delivery, and fleets are looking to a handful of vehicle types to provide such services, primarily step vans and medium-duty trucks. Most of these vehicles are well known by maintenance providers, with electric vehicles being the exception. But now that they are running more often, fleets must account for the dangers lurking in every corner of the concrete jungle. » The Mack MD Series is well-suited for last-mile delivery. From a maintenance standpoint, the hood can be tilted to make inspections and service access easier. Photo: Mack Trucks