Use DMAIC before cutting cost per mile
Apply DMAIC to diagnose a cost-per-mile increase before choosing an improvement action.
The move: do not cut the metric; improve the process behind it. Define the slice A fleet cost metric becomes useful only when sliced. Segment by asset class, route type, region, vendor, age band, fuel type, or driver group. The slice should be narrow enough that the team can name an operating process to inspect. Measure before explaining Fleet systems often disagree. Fuel card data, telematics miles, maintenance invoices, rental charges, and ERP postings may land on different dates. Measurement checks whether the increase is real, comparable, and attached to the right denominator. Analyze the process driver Analysis asks what…
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