processing cash transactions and maintaining records of fuel sales cleaning and maintaining the facility, including restocking snacks and drinks and performing maintenance tasks such as changing light bulbs and replacing air filters informing customers about current fuel prices, promotions, and discounts at the station performing routine maintenance on vehicles, such as checking fluid levels and tire pressures using a computerized point-of-sale system to provide information about products to customers checking identification to prevent underage purchasers of alcohol and tobacco products maintaining a sufficient supply of fuel and lubricants at the gasoline pumps