1 min read
WEX vs. Comdata: Fleet Fuel Card Comparison Guide [2026]
Whether you're looking to cut fuel costs, implement spending controls, or simplify fuel reporting, two of the most popular fuel cards are WEX and...
Table of Contents
1. Mudflap - Transparent discounts and nationwide Visa acceptance
2. Comdata - Traditional OTR card with transparent pricing
3. CFN - Best for Western U.S. fleets for cost-plus pricing at cardlocks
4. AtoB - Tech-focused trucking fuel card with Mastercard acceptance
5. Voyager - Best for fleets that don't fuel exclusively at truck stops
EFS is a popular fuel card for trucking companies because it offers cash-price fuel discounts at more than 16,000 truck stops nationwide. However, it may not be the best fit for every fleet. Some businesses prefer a fuel card with upfront pricing and no monthly fees, while others need broader acceptance.
In this guide, we'll compare the best EFS fuel card alternatives for commercial fleets, looking at their discounts, fees, accepting locations, and key features to help you choose the right fuel card for your business.
| Fuel Card | Discounts | Monthly Fee | Late Fee | Accepting Locations | Trustpilot Rating |
| Mudflap | 25-40¢/gal off diesel at in-network locations | None | 3-6% | Anywhere Visa is accepted | 4.4/5 |
| Comdata | Cash price and 8-40¢/gal at select truck stops | $0-129 per account | 13.99% | 8,000 truck stops | 1.3/5 |
| CFN | Estimated 35¢/gal at discount locations | None | None | 3,000 discount locations; 65,000 gas stations and truck stops | 4.8/5 |
| AtoB | Estimated 42¢/gal at truck stops; estimated 5¢/gal at gas stations. | $3-6 per card | 9% | Anywhere that accepts Mastercard | 4.6/5 |
| Voyager | 3-8¢/gal at select locations | None | None | 97% of gas stations and truck stops | 4.8/5 |
Mudflap is a fleet fuel card that's accepted anywhere Visa is accepted, with its largest discounts available at more than 3,600 in-network truck stops. Fleets can save an estimated 57¢ per gallon at participating locations and still receive a 2¢ per gallon discount when fueling outside the network. Unlike EFS, Mudflap has no monthly fees and displays their discounts upfront, making it an attractive option for businesses that want predictable pricing and easy nationwide acceptance.
| Mudflap | EFS | |
| Accepting locations | Anywhere Visa is accepted | 16,000 truck stops |
| Discounts | Estimated 57¢/gal at 3,600 in network locations, 2¢/gal everywhere else | Cash price at in-network truck stops, discounts vary by customer agreement |
| Monthly fee | None | Fees vary by customer agreement |
| Late fee | 3-6% | Fees vary by customer agreement |
| Trustpilot rating | 4.4/5 | 4.1/5 (WEX Capital), 1.2/5 (WEX) |
Good fit if: You want a fuel card with no monthly fees, strong truck stop discounts, and the flexibility to fuel anywhere Visa is accepted.
Comdata is an over-the-road (OTR) fuel card that's accepted at more than 8,000 truck stops nationwide. Like EFS, it offers cash-price fuel discounts at participating truck stops and runs on a dedicated fuel network with fleet controls and reporting tools. Unlike EFS, Comdata publishes its pricing plans, allowing fleets to choose between a free entry-level option or paid plans with additional features. Fleets with more than 20 vehicles may also qualify for custom fuel discounts.
| Comdata | EFS | |
| Accepting locations | 8,000 truck stops | 16,000 truck stops |
| Discounts | Cash price and 8-40¢/gal at select truck stops, custom discounts for fleets with more than 20 vehicles | Cash price at in-network truck stops, discounts vary by customer agreement |
| Monthly fee |
Monthly plan level options:
|
Fees vary by customer agreement |
| Late fee | 13.99% | Fees vary by customer agreement |
| Trustpilot rating | 1.3/5 | 4.1/5 (WEX Capital), 1.2/5 (WEX) |
In-depth comparison: EFS vs. Comdata
Good fit if: You want an OTR fuel card that offers discounts off the cash price and runs on a dedicated fuel network.
3. CFN
The CFN fuel card is built for business fleets that operate in the Western U.S. Unlike EFS, which focuses on truck stop fueling, CFN's biggest advantage is its network of more than 3,000 cardlock locations that offer cost-plus fuel pricing, primarily across California, Oregon, Washington, Arizona, and Nevada. The card also gives drivers access to more than 65,000 gas stations and truck stops nationwide, so they can fuel when they're outside the CFN cardlock network.
| CFN | EFS | |
| Accepting locations | 3,000 discount locations; 65,000 gas stations and truck stops | 16,000 truck stops |
| Discounts | Estimated 35¢/gal at discount locations | Cash price at in-network truck stops, discounts vary by customer agreement |
| Monthly fee | None | Fees vary by customer agreement |
| Late fee | None | Fees vary by customer agreement |
| Trustpilot rating | 4.8/5 | 4.1/5 (WEX Capital), 1.2/5 (WEX) |
Good fit if: Your fleet operates primarily in the Western U.S. and can benefit from cost-plus pricing at CFN cardlock locations instead of fueling at traditional truck stops.
AtoB is a fintech fleet fuel card that's accepted anywhere Mastercard is accepted. Unlike EFS, which runs on a dedicated truck stop network, AtoB gives drivers the flexibility to fuel at virtually any station while still offering its largest discounts at participating truck stops. It also includes features like a prepaid fuel card option, mobile app controls, and driver pay, making it a good alternative for fleets that want a more technology-focused fuel card.
| AtoB | EFS | |
| Accepting locations | Anywhere that accepts Mastercard | 16,000 truck stops |
| Discounts | Estimated 42¢/gal on diesel at truck stops; estimated 5¢/gal at gas stations | Cash price at in-network truck stops, discounts vary by customer agreement |
| Monthly fee |
|
Fees vary by customer agreement |
| Late fee | 9% | Fees vary by customer agreement |
| Trustpilot rating | 4.6/5 | 4.1/5 (WEX Capital), 1.2/5 (WEX) |
Good fit if: You want a tech-focused fuel card with nationwide acceptance, truck stop discounts, and the option to use a prepaid card instead of a traditional fuel card credit line.
The Voyager fuel card is accepted at over 97% of gas stations and truck stops nationwide, giving fleets the flexibility to fuel wherever business takes them. Voyager is a good fit for fleets whose drivers fuel at a mix of gas stations and truck stops. It also has no monthly fees or late fees, making it a straightforward option for businesses that want broad acceptance and the purchase controls of a traditional fleet card.
| Voyager | EFS | |
| Accepting locations | 97% of fuel stations nationwide | 16,000 truck stops |
| Discounts | 3-8¢/gal at select locations | Cash price at in-network truck stops, discounts vary by customer agreement |
| Monthly fee | None | Fees vary by customer agreement |
| Late fee | None | Fees vary by customer agreement |
| Trustpilot rating | 4.8/5 | 4.1/5 (WEX Capital), 1.2/5 (WEX) |
Good fit if: Voyager is a good choice for fleets that want nationwide acceptance, no monthly or late fees, and the controls that come with a traditional fleet card.
To compare even more options, check out the best fuel cards for business to see how the leading fleet cards stack up on discounts, fees, acceptance, and features.
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