Fleet Fueling Service vs Fuel Cards
Fuel cards are convenient. Fleet fueling service is cheaper. The question is: at what volume does the math flip, and what hidden costs does each option carry? Here is the honest breakdown for Florida fleets.
Fuel cards (WEX, Fleetcor, Comdata) and fleet fueling services (on-site bulk delivery) are the two dominant ways commercial fleets manage fuel in Florida. They are fundamentally different products — and most fleet managers use one without ever running the numbers on the other. Here is the full cost comparison, including factors that rarely appear in the brochures.
How each option works
Fleet fuel cards work like a corporate credit card restricted to fuel purchases. Drivers fuel at participating retail stations. The fleet manager gets a consolidated billing report with transaction-level detail. Popular networks include WEX, Fleetcor, and Comdata — each with slightly different station coverage and reporting features.
Fleet fueling service (also called on-site fueling or bulk delivery) means a tanker truck delivers fuel directly to your yard, depot, or job site. Vehicles are fueled at the source — no driver runs to a gas station. Fuel is typically dispensed directly into each vehicle or into an on-site storage tank your drivers access at shift start.
Per-gallon cost comparison
This is the central question and the answer is clear: at meaningful fleet volumes, bulk delivery is cheaper — often significantly so.
| Fueling method | Typical per-gallon cost (South FL, 2026) |
|---|---|
| Retail pump (no card) | $3.35–$3.60 |
| Fuel card (WEX, Fleetcor) | $3.15–$3.45 (after rebates) |
| Bulk delivery (1,000–5,000 gal/mo) | $2.95–$3.15 |
| Bulk delivery (5,000–20,000 gal/mo) | $2.80–$3.00 |
| Bulk delivery (20,000+ gal/mo) | $2.65–$2.90 |
Fuel card rebates typically range from $0.02 to $0.08 per gallon — not nothing, but far less than the $0.35 to $0.70/gal discount available to bulk delivery accounts. The rebate math is also opaque: cards often push "premium" programs that unlock better rebates only if you hit volume thresholds the average fleet never reaches.
Hidden costs of fuel cards
The per-gallon comparison is only part of the story. Fuel cards carry costs that rarely appear in the pitch deck:
- Fraud losses: Fuel card fraud is a persistent and underreported problem. Industry estimates put fleet card fraud at 1–3% of total fuel spend. A fleet spending $50,000/month on fuel cards loses $500–$1,500/month to fraud on average. Common vectors: card skimming at stations, driver pilferage, cloned cards, and authorization bypass at unmanned pumps.
- Driver productivity loss: Every driver detour to a gas station is paid time. A 20-vehicle fleet making two station runs per week per driver loses roughly 40 hours/month in driver time — at $25/hour loaded labor, that is $1,000/month in paid non-productive time.
- Card program fees: Monthly account fees, per-transaction fees ($0.02–$0.05/transaction), card replacement fees, and reporting fees can add up to $50–$200/month depending on fleet size and the card program.
- Retail price exposure: Fuel card prices track retail pump prices, which spike faster than wholesale prices during supply disruptions, storm events, or refinery outages. Fleet fueling accounts with rack-plus pricing see smaller price movements.
Hidden costs of fleet fueling service
Fleet fueling is not costless either. Common friction points include:
- Minimum order commitments: Most bulk suppliers require a minimum of 500–1,000 gallons per delivery. Small fleets that do not hit minimums regularly face delivery schedule gaps or small-order surcharges.
- Storage infrastructure: If you want an on-site tank, you need a tank (either your own or a supplier-provided loan). Owned tanks require regular inspection, spill kit maintenance, and may need DEP registration in Florida depending on capacity.
- Contract terms: Some bulk suppliers require 12-month contracts with volume commitments. Make sure penalty clauses are reasonable before signing.
- Out-of-area fueling: For vehicles that regularly travel outside your supplier's service area, you still need a backup fueling solution — typically a fuel card. The best approach is bulk delivery for the home yard plus a card with a low limit for road trips.
When fuel cards are the right answer
Fuel cards are not always the wrong answer. They make clear sense when:
- Your fleet burns under 1,000 gallons per month — too little volume for bulk delivery economics to work
- Your vehicles are geographically dispersed with no central yard or overnight parking
- You have significant out-of-state or long-haul mileage that requires roadside fueling
- You are just starting operations and need fuel access before you have a supplier relationship in place
The hybrid approach: bulk delivery plus one card per vehicle
Most mid-to-large Florida fleets use a hybrid model: bulk delivery at the home yard for 80–90% of fuel volume, plus a single fuel card per vehicle for exceptions (out-of-area trips, unexpected overnight stops). This captures the bulk savings on the majority of volume while maintaining flexibility for edge cases. The card limit can be set low — $50–$100 per transaction — since it is an exception tool, not the primary fueling method.
For a fleet burning 5,000 gallons per month, shifting 80% to bulk delivery saves approximately $600–$1,000/month versus an all-card approach — enough to justify the switch within the first quarter. Use our fuel cost calculator to run the numbers for your specific fleet, or call Exigo Fuels at (305) 900-6725 to discuss your situation.
Frequently asked questions
Are fleet fuel cards or bulk delivery cheaper for a 20-vehicle fleet in Florida?
For a 20-vehicle fleet burning 5,000+ gallons per month, bulk delivery is almost always cheaper. Typical savings over fuel cards are $0.25–$0.50 per gallon after accounting for card rebates — roughly $1,500–$3,000/month on 5,000 gallons. At smaller volumes (under 1,000 gal/mo), fuel cards may be more practical despite the higher per-gallon cost.
What is the fraud risk with fleet fuel cards?
Industry data puts fleet card fraud at 1–3% of total fuel spend. Common fraud types include card skimming at unmanned pumps, driver pilferage (filling personal vehicles), cloned cards, and authorization exploits at older terminals. Bulk delivery eliminates most of these attack vectors because fuel goes directly from a metered tanker to your equipment with no card transaction.
Can I use both a fuel card and a fleet fueling service?
Yes — a hybrid approach is common and often optimal. Use bulk delivery for your home yard (where you get the volume discount), and keep one fuel card per vehicle at a low per-transaction limit for out-of-area fueling. This captures savings on 80–90% of volume while maintaining flexibility for road trips and unexpected overnight stops.
Do fleet fuel cards offer any advantages over bulk delivery?
Fuel cards have real advantages in specific situations: nationwide coverage for over-the-road trucks, no minimum order requirements, instant setup with no delivery infrastructure, and detailed per-driver transaction reporting. They are the right tool for geographically dispersed fleets, very small volumes, or as a supplemental backup for bulk delivery accounts.
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