Compare the real monthly and annual savings of the Coast and Comdata fuel cards on your fleet's gallons, after fees.
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About Coast
Coast is a modern fleet and fuel card built on the Visa network, so it works at any station that takes Visa with no network to plan routes around. It requires no personal guarantee, charges no per-transaction fees in the US, and its app lets owners set spending policies by driver, vehicle, day or merchant category with real-time alerts, plus 1 percent back on non-fuel business purchases.
About Comdata
Comdata is a trucking-focused fleet card accepted mainly at truck stops, best known for its FleetAdvance mobile app that steers drivers to the best-priced fuel nearby and for offering access to cash prices, which often sit below posted card prices. It supports customized spending limits and real-time transaction data.
Coast and Comdata pricing
Coast costs $4 per active user per month with no inactive card fees. Fuel savings of 3 to 9 cents per gallon are applied on your statement at any gas retailer, alongside 1 percent back on non-fuel spend, so the discount travels with you rather than depending on an in-network station. Comdata savings span a wide 8 to 40 cents per gallon depending on location and negotiated program, among the largest ranges of any card in our guide, with fees varying by account; its cash-price access can add savings beyond the stated rebate. The calculator applies each card's discount to your monthly gallons, subtracts card fees, and compares net savings and effective price per gallon at the current diesel price.
How they compare
Coast's pitch is simplicity: one flat discount that works at every Visa-accepting station, modern software controls and no personal guarantee, rather than a station network you have to fuel inside to earn the headline rate. Comdata's cash-price access at truck stops can beat headline rebates elsewhere, making it strongest for diesel fleets running truck-stop lanes who will use FleetAdvance to chase price. The honest comparison is a blended one: estimate what share of your gallons would actually earn each card's in-network rate on your real routes, set the discounts accordingly, and let the annual difference decide.
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