Gas Discount Code: 10 Cents Off Per Gallon at CentsOff Marathon Locations (Up to 20% Off)

CentsOff Marathon, powered by Drop Tank

Up to 20% Off
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What You'll Get

Choose from Three Options

  • $8.50 for 10 cents off each gallon of gas up to 100 gallons ($10 value)
  • $20.50 for 10 cents off each gallon of gas up to 250 gallons ($25 value)
  • $40 for 10 cents off each gallon of gas up to 500 gallons ($50 value)

Valid at 46 participating CentsOff Marathon locations. Click here to see a full list of participating locations in your area.

CentsOff Marathon allows drivers to enter a code at the pump that drops the price of gas at participating Marathon locations. Your Groupon voucher and redemption code will be used at the pump to instantly obtain a 10-cent-per-gallon discount, with no physical card required.

The Fine Print

Promotional value expires Dec 31, 2020. Amount paid never expires. Limit 5 per person. Limit 1 per visit. Valid only for option purchased. Full offer value of deal purchased never expires. To receive the full value of the CentsOff Marathon Fuel Savings, you much purchase motor fuel at a participating CentsOff Marathon station. Codes are not stackable. Limit 1 code per gas purchase. Valid only at participating CentsOff Marathon locations. CentsOff Marathon is powered by Drop Tank; contact Drop Tank at or 888-654-3767 with questions. Not valid with Groupon Promo Codes. Merchant is solely responsible to purchasers for the care and quality of the advertised goods and services. Offer is not eligible for our promo codes or other discounts.

About CentsOff Marathon, powered by Drop Tank

Drop Tank was created to expand the market for fuel discount rewards. Drop Tank’s fuel discount rewards can be used for gifts, promotions, and incentives at thousands of gas stations across the country. Drop Tank’s CentsOff Marathon rewards are redeemable only at participating Marathon locations.

To reap those benefits, you simply need to swipe your CentsOff card at the pump or enter the CentsOff code prior to paying for the gas. From there, you can pay and fill up as you normally would. View the company's how-to videos to learn more.

By purchasing this deal you'll unlock points which can be spent on discounts and rewards. Every 5,000 points can be redeemed for $5 Off your next purchase.