Maintenance

Utah Extends Vehicle Cycling to Lower Fleet Costs

Relying on hard data, Utah increased replacement limits to 105,000 miles, a move that resulted in significant savings for the fleet.

July 2010, Government Fleet - Feature

by Shelley Mika - Also by this author

While cautious fleet managers may fear increased costs associated with higher mileage thresholds, Scott Bingham, interim fleet manager, State of Utah Fleet Operations, said the key is keeping up with vehicle maintenance.

As fleet managers sharpen their pencils at budget time, many look to replacement budgets to cut costs. At the same time, many are wary of increasing replacement cycles to compensate, as this can lead to higher maintenance and repair costs, lower fuel economy, increased vehicle downtime, or worse — catastrophic failures in the field.

When faced with this very challenge, the State of Utah looked to a credible source to make a choice: data. After two and a half years of extensive research, Scott Bingham, interim fleet manager, State of Utah Fleet Operations, found the right balance to reduce costs: raising replacement mileage limits from 90,000 to 105,000 miles — a change that yielded impressive savings for the fleet.

Doing the Research

Knowing extending replacement cycles at random could produce dire consequences, Bingham needed solid facts to determine what mileage threshold would yield promising results. However, as he looked to the Internet for guidance, the search proved fruitless. That led him to consult a reliable source: the fleet's own data. Over two and a half years, Bingham pored over every metric fleet systems had tracked. The data demonstrated extending vehicle replacement cycles was the right choice.

Of the 4,404 vehicles owned and managed by the Division of Fleet Operations, Utah extended replacement cycles on all light-duty vehicles, with the exception of diesel vehicles, which already have a 150,000 mile replacement, for a total of 3,500 vehicles in all. 

"In the initial stages of research, we found many fleets do not have access to information that would help them make significant fleet management decisions. Our division invested large portions of our time to verify the correctness and completeness of our data resources," Bingham said. "With the information our systems have, we could verify 90,000-mile vehicle total costs per mile and compare that to the total costs per mile for vehicles with 105,000 miles. We also used mileage interval costs as another comparison."

According to Bingham, data was gathered and compiled to compare mileage intervals to the other mileage intervals within the vehicles' life. "In both research scenarios, the increase was justified by significant savings," he said.

Bingham and his team's research concluded the fleet loses 25 percent of a vehicle's value in the first 20,000 miles. In the last 15,000 miles (from 90,000 to 105,000), it loses a mere 2.1 percent. While a typical concern with higher mileage thresholds is the cost of increased maintenance and repair, for the State of Utah, those costs only increased by $8,880 for all 3,500 vehicles combined. 

"All of our research revealed the increase of 15,000 miles yielded a very small change to the surplus sale returns, and very minimal maintenance and repair cost increases," Bingham said.

With such significant results, Bingham said his team considered extending replacement mileage limits beyond 115,000, but the small data sample didn't make for a confident choice.

"We wanted to make our decision based on data in our fleet management systems. There were small data points indicating moving the replacement mileage even further could help save money, but we were not comfortable with the amount of data in that projection. The data we had was not sufficient enough to make a change above the prescribed 105,000 miles," he said.

Instead, Bingham and his team made a choice based on an appropriately large data set - and one they knew would yield positive results.

While cautious fleet managers may fear increased costs associated with higher mileage thresholds, Bingham said the key is keeping up with vehicle maintenance. "Because our vehicles are maintained at high levels, sometimes more than the manufacturer suggests, our information concludes that higher maintenance, repair, and fuel costs are not a significant concern."  

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