Fleet Maintenance Cost-Per-Mile Tracker

Because it normalizes cost across vehicles with different mileages and reveals the true cost of keeping each one — the basis for both money-pit identification and replacement timing. Total repair cost alone is misleading (a high-mileage truck naturally costs more); cost per mile lets you compare a vehicle against the fleet norm and against its own history. A rising CPM on a particular vehicle signals either a developing problem or the approach of the replace-it point. Without CPM tracking, replacement decisions default to gut feel or catastrophic failure — both worse than data.

When its total cost of ownership going forward (escalating maintenance + downtime + declining reliability) exceeds the cost of replacing it (payment + the lower maintenance of a newer vehicle). Maintenance cost per mile rises with age, and there's an economic crossover point — keeping the old vehicle past it costs more than replacing it. Tracking CPM per vehicle finds that point for each unit, accounting for its actual condition rather than a blanket age rule. The signals: CPM well above fleet norm, rising breakdown frequency, increasing downtime, and major components reaching end of life. Replace on the economics, which this tracker quantifies, not on a guess.

That the fleet is being maintained reactively — fixing things after they fail rather than preventing failures on a schedule. This is expensive: breakdowns mean emergency repairs (premium-priced), unplanned downtime (at the worst times), cascading damage, and safety risk, all of which preventive maintenance avoids at lower cost. A healthy fleet's maintenance spend is dominated by planned preventive work with breakdowns rare. A high reactive share is a strategic flag — it means investing more in preventive maintenance (the PM scheduler's domain) would likely reduce total cost, not increase it. The preventive-share metric makes this strategic gap visible, beyond any individual vehicle's costs.

It's the cost view that ties the fleet program together. The PM scheduler drives the preventive work whose share this tracker measures — more preventive maintenance should show up as a higher preventive share and (over time) lower total CPM. The DVIR log surfaces defects that become maintenance events logged here. The fuel tracker's declining-MPG signals often precede maintenance costs (a developing problem hurts economy before it triggers a repair). And the document tracker ensures the vehicle stays legal to operate while it's being maintained. Together they manage the fleet's total operating cost — fuel, tires, maintenance, compliance — of which this tracker captures the maintenance and the replacement-timing piece. Each tool informs the others; this one quantifies whether the maintenance strategy is working in dollars per mile.