Circle K Inner Circle Fuel Day: Get 40¢ Off Per Gallon - Today August 13

Circle K Inner Circle members can save on their next fill-up during Inner Circle Fuel Day on Thursday, August 13, 2026. Participating Circle K locations are offering members 40¢ off every gallon all day.

Circle K Inner Circle Fuel Day is happening Thursday, August 13, giving eligible Inner Circle members a chance to save 40¢ per gallon when they fill up at participating Circle K locations.

⛽ Circle K Fuel Day — August 13

Save: 40¢ off per gallon

When: Thursday, August 13, 2026, from 12:01 a.m. to 11:59 p.m. local time

Who: Fully registered Circle K Inner Circle members

Where: Participating Circle K fuel locations

How: Enter the phone number linked to your Inner Circle account at the pump before fueling.

Official Circle K Fuel Day Details: See the Circle K Inner Circle Fuel Day Offer →

How to Get 40¢ Off Per Gallon at Circle K

To receive the Fuel Day discount, you must be a fully registered Inner Circle member. At a participating Circle K location, enter the mobile phone number associated with your Inner Circle account at the pump before fueling.

Not an Inner Circle member yet? Circle K membership is free. You can sign up through the Circle K app, online, or by texting JOIN to 25050.

Who Can Get the Circle K Fuel Day Discount?

The promotion is available to fully registered Inner Circle members at participating company-operated and select franchise-operated fuel locations.

Circle K says the offer is not available in Alaska, Connecticut, Delaware, Hawaii, Idaho, Kansas, Massachusetts, Maine, Minnesota, Montana, Nebraska, North Dakota, New Hampshire, New Jersey, Oklahoma, Rhode Island, South Dakota, Utah, Vermont, Wisconsin, or Wyoming.

Circle K Fuel Day Restrictions

• The promotion is valid Thursday, August 13, 2026, from 12:01 a.m. through 11:59 p.m. local time.
• The discount is limited to 35 gallons per transaction.
• All fuel grades are included, including diesel.
• You must enter the phone number associated with your registered Inner Circle account before the transaction.
• The offer is available only at participating locations.
• The Fuel Day discount cannot be combined with other Inner Circle fuel offers.

Find a Participating Circle K

Because participation varies by location, check the Circle K store locator before heading out to fill up.

Find Participating Circle K Locations →

More Circle K Deals & Freebies

Looking for more ways to save at Circle K? We're building a complete guide with current Circle K fuel discounts, Inner Circle rewards, freebies, and other promotions.

[CIRCLE K EVERGREEN GUIDE LINK WILL BE ADDED HERE]

Bottom Line

If you're a Circle K Inner Circle member, Thursday, August 13 is a good day to fill up. The Fuel Day promotion gives eligible members 40¢ off per gallon at participating locations, with the discount available all day.

Just remember to enter the phone number connected to your Inner Circle account at the pump before fueling and check that your location participates in the promotion.