PHOENIX — If you want cheap gas and are near a Circle K, time to fill up.

Circle K will offer a gas discount of 40 cents per gallon on Thursday, Sept. 1, nationwide to mark Circle K Fuel Day.

The sale, available at more than 3,600 locations nationwide that sell Circle K-branded fuel, is happening just before the Labor Day holiday weekend to allow customers to fill up their tanks for in time for their travel plans.

“It’s been a challenging summer for travel, so we want to thank our customers for their loyalty by offering them additional savings ahead of the busy holiday weekend, ending the summer on a high note,” Nathan Woodland, head of North America category fuels at Circle K, said in a statement. 

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How to get the Circle K gas deal

Circle K will offer the 40-cent-per-gallon savings for a three-hour period from 4 to 7 p.m. local time on Thursday. Anyone who’s in line for gas before 7 p.m. will receive the discount.

The discount is available only at locations that sell Circle K brand gas. About half of Circle K’s convenience stores nationwide sell its brand of fuel.

The price on the pump will reflect the discount, according to Circle K.

Customers enrolled in Circle K’s Easy Pay program can save an additional 10 cents per gallon during the fuel sale by using their Easy Pay card, said Madeline Black, a company spokeswoman.

Customers can find the nearest locations close to them by going to circlek.com/store-locator, searching their location and selecting “Circle K Fuel Stores.”

Follow Michael Salerno on Twitter @salerno_phx.