Which gas station of China Petroleum is the cheapest?

Nanchong Sinopec Gas Station According to Phoenix News Network, Nanchong Sinopec Gas Station is located at the intersection of Provincial Highway 204 and Provincial Highway 203 in Jinping Town, Peng 'an County, Nanchong City, with convenient transportation nearby. There are also many gas stations. No.92, No.95 and No.98 are available, and the prices are cheaper than those in other places. Gasoline is priced according to the label. 92 # gasoline is the cheapest, 95 # gasoline is the middle price, and 98 # gasoline is the most expensive.