How do you track vehicle downtime to find your most costly trucks?

Log every day out of service

Finding your costly vehicles starts with recording downtime: every day a vehicle is out of service and why. Whether it is in the shop, waiting on parts, or sidelined by a breakdown, capturing those days per vehicle builds the picture of which trucks are actually reliable and which are not.

Without this log, downtime is invisible in aggregate. You remember the dramatic breakdowns but not the steady drip of days one vehicle spends in the shop, and it is often that quiet accumulation that identifies your problem truck.

Pair downtime with repair cost

Downtime alone tells part of the story, and pairing it with repair cost tells the rest. A vehicle that is both frequently down and expensive to fix is a clear candidate for replacement. Tracking both per vehicle lets you see total cost of ownership rather than judging by one bad week or one big bill.

This combined view prevents wrong conclusions. A truck with one large repair might look bad in a single month, but a truck with constant small downtime and repairs is the one steadily bleeding the operation.

Compare vehicles fairly

To find your worst performers, compare vehicles on a fair basis, accounting for how much each is used. A high-mileage workhorse will naturally see more service than a spare, so look at downtime relative to the work each does. The goal is to spot the vehicle that is unreliable for its role, not just the busiest one.

This comparison is what surfaces the real problem vehicle: the one down more than its workload justifies, costing you uptime and money out of proportion to what it contributes.

Use the data to decide

The point of tracking downtime is to make better decisions: when to repair, when to replace, and which vehicles to trust with critical jobs. Data on downtime and cost turns the keep-or-replace question from a gut call into an informed one, and it justifies retiring a truck that is quietly draining you.

FleetTendr tracks downtime per vehicle alongside the service history and costs, so you can see which trucks spend the most time out of service and what they cost, and identify the money-draining vehicles that a rough impression would miss.