At 10 to 100 trucks the useful tool is a route-aware fuel optimizer, which decides where each truck should fuel and how many gallons to buy on the route it is already running, using your own negotiated discounts, live prices, state fuel tax, tank capacity and hours of service. That is a different product from a fuel card, which supplies discounts and controls, and from telematics, which reduces how much fuel gets burned. The arithmetic still works at this size: at 100,000 miles a year and 6 miles per gallon, 10 trucks burn about 167,000 gallons a year and 100 trucks about 1.7 million, so one cent per gallon is worth roughly $1,700 and $17,000 annually. The two things to insist on are that the vendor has no fleet minimum, because plenty in this category are scoped at 50 trucks and up, and that savings are reconciled against your actual fuel card transactions rather than estimated, because at this size an unverifiable claim is a large share of a thin margin.
Updated August 2026 · 7-minute read
The optimization is the same problem throughout. What changes is how the plan reaches the driver, and whether a person can still hold the whole operation in their head.
One person knows every truck
Where it stops fitting in someone's head
Small enough to move fast, big enough to matter
At 10 to 100 trucks the useful tool is a route-aware fuel optimizer, which decides where each truck should fuel and how many gallons to buy on the route it is already running, using your own negotiated discounts, live prices, state fuel tax, tank capacity and hours of service. That is a different product from a fuel card, which supplies discounts and controls, and from telematics, which reduces how much fuel gets burned. The arithmetic still works at this size: at 100,000 miles a year and 6 miles per gallon, 10 trucks burn about 167,000 gallons a year and 100 trucks about 1.7 million, so one cent per gallon is worth roughly $1,700 and $17,000 annually. The two things to insist on are that the vendor has no fleet minimum, because plenty in this category are scoped at 50 trucks and up, and that savings are reconciled against your actual fuel card transactions rather than estimated, because at this size an unverifiable claim is a large share of a thin margin.
At 100 trucks the honest answer is that the category matters more than the brand. You want a route-aware fuel optimizer rather than a fuel card or a telematics fuel dashboard, because only the optimizer decides where a given truck should fuel on a given load. Compare on four things: whether savings are reconciled against your actual transactions or estimated, whether the plan updates once the truck is moving or is locked at dispatch, whether it works with the ELD and TMS you already run, and whether it optimizes your existing contracts rather than steering volume into a network the vendor profits from. Our category breakdown at /compare/best-fuel-optimization-software covers who does what.
No, though the reason is different than at scale. Ten trucks burn roughly 167,000 gallons a year, so a cent per gallon is about $1,700 and five cents is about $8,500. Against per-truck software pricing that maths out quickly. What is different is that small fleets often hold thinner contracts, so more of the available saving comes from picking a better stop and from state tax awareness than from enforcing deep discounts. That is fine, it is just a different mix.
No. Plans reach drivers by SMS or an emailed link with no ELD involvement, which is how the smallest fleets and owner-operators run on Flow today. ELD in-cab delivery is better once it is available, because the plan sits next to the dispatch a driver is already reading, but it is an upgrade rather than a prerequisite.
No. Trips can be entered manually, which is normal for small fleets, and Flow accepts dispatches by webhook or API from any TMS once you have one. The optimization does not care how the load arrived.
A discount app or network supplies rates; it does not decide where a specific truck should fuel given its route, its tank, the state tax it will pay, and the hours it has left. Those are different jobs and both can be worth having. If you hold no negotiated discounts at all, a network is the faster first win. If you already hold decent rates, the bigger gap is usually that nothing is making sure trucks fuel where those rates apply.
Related: how to audit a savings claim, 300 to 1,000 trucks, the category, compared.
The free fuel plan tool takes a lane and returns a real optimized plan, no signup and no card. If it looks right, a demo scopes what integration would take for a fleet your size.