How to pump/fill gas to your car (this is written for Huwenbo Shi)

Step 0: Check your tank's position and park in the gas station so that your tank is facing the pumping machine

Step 1: There should be a switch around Driver's seat to open the door of the gas tank. You should park well, shut off your engine and open the tank door.

Step 2 : Make a payment. If you use credit card/debit card/Vons card, go to Step2a. If you pay by cash, go to Step 2b
Step 2a: Insert your credit card/debit card, enter your zip code
Step 2b: Go to the Staff at the station and make cash purchase of whatever amount/price you want to fill

Step 3: Remove the nozzle
Step 4: Select Grade/type of gasoline you want

Step 5: Insert the nozzle into your tank opening and press down the handle to start fueling
Step 6: Watch the price/amount increasing until you think it's enough; Or you can make use of the threshold controller on the handle to let it automatically stop when full.

Step 7: Close your tank door.
Step 8: Put back the nozzle and select receipt or no receipt
Step 9: You are good to go.

For pictures, check this:
http://www.wikihow.com/Pump-Gas