According to Fleet Maintenance, every minute your fleet is down, you’re losing money—sometimes as much as $760 a day per vehicle. That’s not a number you can afford to ignore. According to Fleet Maintenance, downtime doesn’t just dent your schedule—it hits your bottom line hard.

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Breakdowns, fuel costs climbing higher, safety risks piling up—these things don’t exactly wait for a convenient time to hit. So, how do you stay on top of them? You track the right fleet KPIs.  Not just numbers on a screen, but signals. They tell you when something’s starting to slip, so you can jump in before it turns into a bigger problem (and a bigger bill).

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This guide walks through the KPIs that matter most for any fleet manager. Keep tabs on these, and you’ll catch issues early and keep your operations running steady and profitable.

What are fleet management KPIs?

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How do you really know if your fleet’s running well? You look at the numbers. How often are the trucks rolling? How much fuel are they using? Is maintenance getting handled on time? These are the questions that tell you what’s going on.

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KPIs work a lot like the warning lights in your truck. They don’t shout, but they give you a heads-up when something’s off. Maybe you notice fuel spending creeping up. Or drivers are pushing the trucks harder than they should. See a problem early? You’ve got a shot to deal with it before it costs you.

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But KPIs aren’t just about problems. They help you stay ready. Big rush coming? You’ll know. New rules to follow? Handled. Trucks getting older? You’ll catch that too. Keep an eye on the right numbers, and you’ll know where to spend, where to save, and how to keep things rolling.

Why KPIs matter in fleet management

Running a fleet without good data? Feels a lot like driving with no map. You might get where you’re going, but probably not the fastest—or cheapest—way there.

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Here’s why tracking KPIs really matters:

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1. Catch waste before it drains your budget

Little things slip by. Maybe a truck’s burning more fuel than it should. Maybe a route takes longer than it needs to. These small issues? They don’t stay small for long. Keeping an eye on KPIs helps bring them to the surface. 

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Track fuel use, idling, how often your vehicles are actually out working. Once you see the patterns, it’s easier to know where to tweak. Cut down idling here, adjust a route there—it all adds up.

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2. Cut down on downtime

Nothing hits harder than a truck that’s unexpectedly off the road. Schedules get messed up. Jobs get delayed. Money gets lost. This is where tracking maintenance KPIs comes in. You spot repair trends before they sideline your vehicles. Stay ahead of breakdowns, and the wheels keep turning.

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Keep an eye on:

• Scheduled vs. unscheduled maintenance

• Average repair turnaround times

• Frequency of breakdowns by vehicle

With the right info, fleet managers don’t have to wait for things to go sideways. Instead of fixing trucks after they break down, they can step in early. That means fewer delays and vehicles that stick around longer.

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3. Stay ahead of compliance issues

Rules and regulations come with the territory, but they don’t need to be a constant headache. When you’re tracking the right numbers, staying on top of compliance gets a whole lot easier. Things like driver hours, vehicle inspections, and emissions across your fleet—these are the big ones.

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Here’s what’s worth watching:

• Driver hours (so you know when they’re getting too close to limits)

• Inspection results (pass or fail rates)

• Emissions across your vehicles

Keeping tabs on these helps you avoid fines and keep your drivers safe. No surprises, no last-minute scrambles—just peace of mind knowing the fleet is covered.

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4. Get more life out of your fleet assets

Swapping out vehicles too early? That burns through your budget. But run them into the ground, and you could pay even more in repairs and downtime. There’s a middle ground, and KPIs help you find it.

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Mileage, repair costs, how much the trucks are actually working—all of that gives you a read on each vehicle’s condition. With that info, you can decide if it’s time to fix something, retire it, or replace it. No guesswork. Just making sure you get the most out of every truck without pushing them too far. That keeps surprises low and the budget steady.

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5. Make confident, data-backed decisions

Gut feeling has its place. But when you’ve got live numbers from KPIs? That’s where the real decisions come from.

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For example:

• Cutting fuel costs? Look at the fuel efficiency numbers.

• Want safer drivers? Watch for things like speeding or hard braking.

These insights tell you where to make changes—or where to let things ride. Either way, you know the fleet’s heading in the right direction.

Core KPIs to track 

Here are the core KPIs to track when doing fleet management:

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1. Vehicle utilization rate

Are your vehicles actually doing the work they’re meant to, or are they sitting idle more often than not? The vehicle utilization rate answers that question by comparing how much time a vehicle spends on the road versus how much time it’s simply available but unused. 

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If a truck’s out on the road 85 to 90% of the time, that’s a good sign—it’s pulling its weight. But when that number dips too low, it might mean you’ve got more trucks than you really need. Watching this number helps you avoid paying for vehicles that aren’t doing much, keeping your fleet tighter and your costs in check.

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2. Fuel efficiency

Fuel isn’t cheap. Knowing how far your trucks go on a gallon of fuel makes a big difference. You figure this out by dividing the distance traveled by the fuel used—whether that’s miles per gallon or liters per 100 kilometers. For example, if a truck traveled 500 miles using 25 gallons, its efficiency is 20 miles per gallon (MPG).

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If that number starts dropping, something’s up. Could be the engine needs attention. Could be drivers with heavy feet. The better this number looks, the more you save—and it’s not just good for your wallet. It’s better for the environment too.

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3. Maintenance cost per vehicle

This one tells you what you’re spending, on average, to keep each truck running. Add up all the maintenance bills over a set time, divide by the number of vehicles, and you’ve got the number. Maintenance costs usually cover things like oil changes, tire replacements, brake repairs, engine tune-ups, and any other routine service or unexpected fixes.

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If one truck’s costs keep climbing, it might be time to think about retiring it. But if the costs are steady—or dropping—it means your maintenance game is solid. Tracking this helps you spot trouble before it turns into expensive repairs.

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4. Driver behavior score

Even a well-maintained truck can take a beating if it’s not driven right. This score looks at things like speeding, hard braking, or quick acceleration—all the stuff that wears down a vehicle faster.

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A high score? That means drivers are doing things right. A lower score? Might be time for some extra coaching. Keeping tabs on this helps cut down accidents, keeps insurance costs lower, and makes your trucks last longer.

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Tools like Geotab, Samsara, and Verizon Connect typically track these behaviors, providing real-time feedback on how drivers handle vehicles.

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5. Vehicle downtime

Every minute a truck’s stuck in the shop and not out on the road, it’s costing you. Downtime tracks how long your trucks are sidelined for repairs or maintenance. When that number starts climbing, something’s off. Maybe the trucks are getting old.

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Maybe repairs are just taking longer than they should. Either way, too much downtime throws everything off—deliveries get delayed, customers get annoyed, and the whole operation slows down. Keep that number low, and things keep rolling.

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6. Total cost of ownership (TCO)

Buying a truck? The sticker price is just the beginning. TCO looks at the full cost—fuel, maintenance, insurance, depreciation—all of it. Sometimes a truck that looks cheap upfront costs more down the line with fuel or repairs. Knowing the full picture helps you make better calls on what to buy. It’s not just about what you spend today—it’s about what that truck will cost you over the years.

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7. Compliance and safety metrics

Managing a fleet means dealing with a stack of rules. Driver hours, inspections, emissions—it’s a lot. Tracking compliance and safety numbers keeps you covered. Watching things like inspection results or safety incidents helps you catch problems early before they become fines or something worse. Staying on top of this stuff keeps drivers safer and your fleet out of trouble.

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One key example, especially in the U.S., is monitoring CSA (Compliance, Safety, Accountability) scores. These scores track things like safety violations and inspection results to help ensure your fleet stays FMCSA compliant and safe out on the roads.

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8. Scheduled vs. unscheduled maintenance ratio

Nobody likes surprise repairs. They never show up at a good time. This KPI helps with that. The scheduled versus unscheduled maintenance ratio shows how often you’re staying ahead with planned work and how often you’re reacting to breakdowns that catch you off guard.

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If most of your repairs are scheduled, you’re in good shape. But if surprise repairs keep stacking up, it’s probably time to rethink your maintenance plan. Keeping that balance right helps avoid last-minute chaos and keeps costs under control.

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A healthy benchmark for this ratio is around 70–80% scheduled maintenance versus 20–30% unscheduled. If you’re falling outside that range, it’s worth taking a closer look at your approach.

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9. Average repair turnaround time

This one’s simple. It measures how long it takes to get a truck fixed from when the issue pops up to when the truck is back in service.

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Shorter times are better. Long repairs mean trucks parked, deliveries delayed, money lost. If repairs take too long, it could be your process or your shop that’s slowing things down. Getting trucks back out there quickly keeps everything running.

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10. Accident rate per million miles/kilometers

Accidents? They happen. But knowing how often gives you insight into safety across your fleet. This metric tracks the number of incidents per million miles or kilometers.

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Lower is always better. If your trucks are racking up more miles but accidents stay low, that’s a win. It means your safety training is working. If the numbers go up, though, it’s time to step back and check in on safety protocols and training. Keeping this number down protects your drivers—and your business.

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11. Idle time percentage

When a truck’s sitting still with the engine running, it’s just burning fuel for no reason. This measure looks at how long that happens across your fleet. It might not feel like a big deal, but those minutes of idling add up fast and can cost a lot in fuel.

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Plus, it puts extra wear on your engines without doing any real work. Keeping that idle time low helps save on fuel and keeps your trucks in better shape. Cutting down here is a simple way to save cash without much effort.

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12. How old are your trucks and equipment?

Older vehicles aren’t just about age—they usually bring more breakdowns and higher repair bills. They also tend to use more fuel than newer models. Keeping track of the average age of your fleet helps you know when it’s time to swap something out before the costs get out of hand.

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Younger trucks cost less to maintain and run more efficiently. As your equipment gets older, it’s smart to plan ahead so you’re not caught off guard by sudden breakdowns or big repair jobs.

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13. Route efficiency

Some routes just work better. They get your drivers where they need to go faster, using less fuel. Others? They eat up time and money without you noticing. Checking how well your routes are working helps you spot these trouble areas.

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When you fine-tune routes, drivers spend less time driving, fuel bills stay lower, and deliveries land on time. It's one of those behind-the-scenes things that keeps both your budget and your customers in a good place.

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14. Making sure your gear isn’t just sitting around

It’s easy to focus on trucks, but what about all the other stuff—trailers, tools, equipment? This is where checking how much you actually use that gear comes in handy. If most of it’s in action, you’re getting good value.

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But if some things are always parked or gathering dust, maybe it’s time to rethink. Do you need that extra trailer, or could you sell it off? Keeping an eye on this helps you get the best use out of what you’ve got.

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15. Do your deliveries show up when you said they would?

Ask any customer what matters most, and they’ll tell you—it’s getting their stuff on time. This simple check is about whether you’re hitting the delivery times you promised. When you are, people trust you. When you’re late too often, that trust starts to slip.

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This ties back to everything else—routes, vehicle upkeep, drivers doing their thing. Watching this metric helps keep your customers happy and your business reputation solid.

Setting and tracking KPIs: best practices

Here are the best practices to follow when setting and tracking KPIs:

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1. Set clear goals based on industry benchmarks

It’s hard to improve what you can’t define. Setting clear, specific goals is where it all starts—but these goals shouldn’t just be guesses. Look around your industry. What are other fleets achieving? Use those benchmarks to set targets that make sense for your operation.

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For example, many top-performing fleets aim for a 95% on-time delivery rate. According to the American Transportation Research Institute (ATRI), leading fleets also maintain fuel efficiency around 6.5 to 7.5 miles per gallon. These kinds of stats give you reasonable targets to aim for. Don’t go for perfection; go for better.

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Once you’ve got those targets, they act like guideposts, helping you stay on track. But here’s the thing—your goals aren’t set in stone. As your business grows or shifts, those targets should too. Keep revisiting them to make sure they still match where you’re headed.

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2. Use fleet software and telematics to track data

Manually tracking fleet data? That’s like trying to juggle with your eyes closed. Telematics and fleet software do the heavy lifting for you, gathering data from your vehicles automatically—things like fuel usage, routes, driver behavior, and maintenance needs.

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Here’s the type of info you’ll want at your fingertips:

• Real-time vehicle locations

• Fuel consumption trends

• Maintenance alerts

• Driver behavior patterns (speeding, braking, idling)

These tools don’t just give you numbers—they give you insights. With accurate, real-time data, you can stop flying blind and start making smarter calls for your fleet.

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3. Involve drivers and staff in performance reviews

The people behind the wheel and under the hood play a huge role in the numbers you’re tracking. So why leave them out of the conversation? Bring your drivers and staff into the loop when you’re reviewing KPIs.

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When they understand the “why” behind what you’re measuring, they’re more likely to care about improving it. Drivers know the roads, the routes, and the vehicles—they can give feedback that data alone won’t show. Maybe a certain route always causes delays, or a truck isn’t handling well. This kind of insight makes your KPI tracking stronger.

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Plus, when everyone’s on board, improvements feel like a shared win—not just another thing management’s watching.

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4. Review KPIs regularly and adjust targets as operations evolve

Things shift all the time—fuel prices jump, new trucks join the fleet, rules get updated. That’s why it’s smart to check your KPIs regularly to make sure they still make sense. A good rhythm is to review them every few months.

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This way, you can catch early signs of trouble—like rising fuel bills or longer maintenance times. And if your business changes, like adding new routes or vehicles, you can tweak your goals to match. It’s kind of like steering a boat—you don’t set the wheel once and walk away. You make small adjustments as you go.

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5. Focus on the kpis that actually lead to action

There are a ton of things you could track, but not all of them help you do something useful. The best KPIs are the ones that push you to take action.

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Say you’re tracking tire pressure. Sure, that’s good to know. But if it’s not helping you make a call or solve a problem, it’s just noise. Stick with the numbers that help you make decisions—those are the ones that keep things moving.  On the other hand, knowing your maintenance cost per vehicle? That helps you decide whether to keep repairing or replacing.

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Focus on the numbers that push you to do something—whether it’s cutting costs, improving safety, or boosting efficiency. Less is more when it comes to KPIs that matter.

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6. Communicate KPI results clearly across the team

Data’s no good if it stays locked up in reports. Share it with your team—drivers, mechanics, dispatchers. Everyone plays a part in those numbers, so they should know how things are going.

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Don’t overcomplicate it. You don’t need to throw spreadsheets at them. Simple charts, quick updates in meetings, even a whiteboard in the break room showing top metrics these can go a long way. Focus on the “why” behind the data, like how improving fuel efficiency helps save costs or why cutting downtime keeps customers happy.

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When the team understands what’s at stake, they’re more likely to get behind the effort.

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7. Use past data to predict future outcomes

KPIs aren’t just about looking back—they can help you see what’s coming. By tracking patterns over time, you can start spotting trends that might affect your fleet down the road.

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Let’s say maintenance costs have been climbing for three quarters straight. That tells you it might be time to plan for new vehicles or adjust your maintenance schedule. Or maybe fuel efficiency is dropping—that could signal driver behavior issues or aging equipment.

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Using past data this way helps you get ahead of problems instead of scrambling to fix them later. It turns your KPIs into more than just a scorecard—they become a tool for planning the future.

Challenges and solutions of fleet management KPIs

1. Too much data, not enough clarity

When you’re tracking every little thing—fuel, maintenance, routes, driver habits—it piles up fast. Suddenly, you’ve got spreadsheets full of numbers but no idea what really matters. It’s overwhelming, and decisions start feeling like guesswork.

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The way out? Strip it back. Pick a few key metrics that actually help you make decisions, like fuel costs or vehicle downtime. The rest? Set it aside for now. Focus makes everything clearer.

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2. Drivers feeling like they’re being watched

The second you roll out performance metrics, some drivers and staff might feel like they’re under the spotlight. Nobody wants to feel like they’re being judged for every little move.

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The fix is simple: make it a two-way street. Bring them into the loop early on. Explain why these KPIs exist—not to nitpick, but to make life easier for everyone. Safer driving? Fewer breakdowns. Better routes? Less stress. And when people hit their targets, make sure they get a little credit.

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Some fleets take it a step further by offering driver scorecards with bonuses for safe driving. This turns KPIs into a motivator instead of just a monitor, giving drivers a reason to engage and improve without feeling micromanaged.

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3. Data that’s all over the place

If the numbers you’re working with are spotty, outdated, or wrong, it doesn’t matter how good your KPIs are. You can’t steer a ship with a broken compass.

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Here’s where the right tools make all the difference. Good fleet management software collects everything in real time. No guesswork, no double-checking endless logs. Solid data leads to solid decisions.

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4. KPIs that don’t fit anymore

Your fleet changes. New routes, different vehicles, maybe new services. But those old KPIs? They’re stuck measuring things that might not even matter now.

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So, check in regularly. Every few months, ask: “Are these still the right numbers to track?” Maybe you need to add delivery times, or swap out an old metric that doesn’t reflect today’s goals. Keep it flexible so your KPIs stay useful.

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5. Collecting data but never using it

It feels good to collect a ton of data—it feels like you’re doing something important. But if it just sits in a file somewhere? It’s not helping.

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The solution? Make reviewing KPIs a regular habit. Don’t just glance at the numbers—ask what they’re telling you. Are fuel costs climbing? Are repairs taking too long? The numbers should always lead to action. Otherwise, they’re just taking up space.

Comprehensive fleet management KPIs – A cheat sheet! 

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Tracking the right fleet KPIs isn’t just about crunching numbers—it’s about making smarter decisions that drive efficiency, cut costs, and keep your operations running smoothly. Ready to take control of your fleet performance? Sign up for Fynd TMS today and turn your data into action!