SAMARA, RUSSIA — A local Russian gas station called Olvi in the town of Samara started an unorthodox marketing strategy that has caught the public’s attention recently.

The rules were pretty simple – wear the appropriate outfit, fill up the tank yourself, and go to the front desk to tell the staff the pump number and fuel type. Anyone who followed the rules received a full tank of gas entirely free.

The outfit patrons were supposed to wear? A bikini and high heels.

Apparently, the marketing strategy worked as it attracted a swarm of customers donning various bikini outfits in order to get their free tanks of gas.

Olvi is not the first gas station that has promoted such a deal. Last year, a gas station in Ukraine conducted the exact marketing stunt in the country’s capital of Kiev.