Compare the real monthly and annual savings of the WEX and Marathon fuel cards on your fleet's gallons, after fees.
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About WEX
The WEX Fleet Card is the most widely accepted fleet card in the United States, working at roughly 95 percent of fuel stations plus tens of thousands of service locations. Its strengths are universal acceptance, detailed purchase controls with driver IDs, automatic accounting data on every transaction, tax exemption reporting and access to the WEX EDGE savings network that also discounts tires, hotels and other business costs.
About Marathon
Marathon's fleet card offers a slightly better discount than most widely accepted branded cards, supported by the WEX network for acceptance beyond its roughly 6,000 branded locations, more than most branded competitors. It includes automatic accounting and expense tracking, limits by amount, time and day, and a free app.
WEX and Marathon pricing
WEX pricing is quote-driven, with independent reviews commonly reporting around $4 per card per month for the core Fleet Card. Rebates run 3 to 15 cents per gallon inside the WEX EDGE savings network and 1 to 3 cents elsewhere, with the top rates tied to fueling location and monthly volume; the truck-stop oriented Fleet Cross Roads card averages around 15 cents in-network. Marathon rebates reach up to 7 cents per gallon when buying enough fuel at its stations each month, and with around 6,000 branded locations the maximum rate is easier to earn across more of the map than for smaller branded networks. 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
WEX's core strength is acceptance breadth: its discounts are modest outside the EDGE network, but the card works nearly everywhere, so its savings are dependable rather than spectacular. Marathon squeezes a better-than-average branded discount out of a larger-than-average branded network, a quietly competitive middle path among the station cards. 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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