Motorcyclists who fill up at any PTT petrol station will get a Penguin SIM card for making free phone calls and accessing the Internet as well as a chance to win one of 50 Yamaha Finn motorcycles.
PTT said on Monday the offer would remain valid all year.
Chief operating officer Auttapol Rerkpiboon said there were Bt2.12 million worth of Finn bikes on offer, each worth Bt42,500.