Circle K Fuel Day Deal: Save up to 40¢ per gallon
Updated September 27, 2026
Circle K’s Fuel Day was a one‑day promotion that ran on September 24, 2026. The offer was available to Inner Circle members at participating Circle K stores in California, Colorado, New Mexico, Oregon, Texas, and Washington.
The deal
The promotion covered all fuel grades, including diesel, and allowed a maximum purchase of 35 gallons per transaction.
Why we like it
The advertised discount was up to 40¢ per gallon. Members could claim the savings by presenting their Inner Circle membership card or app at the pump during the all‑day window from 12:01 a.m. to 11:59 p.m. local time. The discount applied automatically to the fuel price at the pump, so no additional codes or coupons were required.
Key features
This deal was ideal for drivers who needed a large quantity of fuel or who wanted to take advantage of a lower price on a single day. It was especially useful for fleet operators, long‑haul truckers, or anyone who frequently refueled at Circle K locations within the participating states.
Who it's for
The promotion was only available on the specified date and was not carried forward to other days. Because the offer has ended, it is no longer possible to claim the savings. However, the details remain useful for historical reference or for comparing future Circle K Fuel Day promotions.
Worth knowing
There were no additional caveats beyond the date and gallon limit. Members had to be present at the pump during the specified window to receive the discount. No online or mail‑in coupons were accepted, and the savings could not be combined with other promotions.
Bottom line
If you’re interested in future Circle K Fuel Day events, keep an eye on the Circle K website or the Inner Circle app for announcements. The next promotion may offer similar or even greater savings, so staying informed can help you plan your fuel purchases more effectively.
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