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Building positive relationships with dealers and independent maintenance shops is one of the keys to successfully maintaining complex engine exhaust aftertreatment systems, according to several fleet representatives.

Battery-electric medium-duty trucks may have a bright future due to their potential to reduce operational costs and improve sustainability. But currently, the availability of these trucks is limited as testing continues.

It's important for technicians to be savvy with technology, but companies will also train mechanically inclined techs and teach them new skills.

Many in the industry say variable-speed drives, which run only as fast as necessary, are increasingly popular. Variable drives can save on horsepower and therefore save on fuel. However, the more traditional on-off drive also is a popular choice because it’s simplest and cheapest.

Ryder System Inc.is one company whose fleet maintenance technicians are using mobile lifts to get under big rigs.

Tesla’s announcement in November that it will produce an all-electric Class 8 tractor by 2019 helped highlight the potential for electric power in commercial trucking. But while Tesla and others are electrifying the entire truck, some companies are focusing on the axles.

When the electronic logging device mandate finally takes effect in December, freight hauling capacity will tighten and spot market rates are likely to rise, according to trucking industry analysts.

Cummins Inc. recently endorsed two fuel additives, marking the first time the diesel engine maker has taken such a step.

Maryland-based Ramar Moving Systems hauls specialty items such as art, satellites and, once, a moon buggy.