In the manual, likely on the cluster, and on the gas tank door.
Do you get the feeling people don't read?
My neighbor kid told me her washers weren't working, I checked they worked great. "Lemme know if they stop working". Get a call from her Grandmother a week later saying how she needs them to work with the upcoming snow (wintertime). I'm on it. She comes over again and I check it all over while having her actuate them. Nothing at the pump. I check fuses etc. Last resort I try the switch. "THAT'S NOT HOW TO DO IT!" She then tells me that you pull the mist function back and that mists the window. Odd, I always used the washer function that is down the stalk another inch, it's a push forward. Needless to say she is adamant, I suggest we look at the manual. She proceeded to tell me how she didn't need to read to know how to drive her car.