Have you ever noticed a little arrow on your gas gauge? Did you know the symbol pointing left means the gas filler cap is on the left side of the car and vice versa. This little arrow is on nearly every car sold in the US during the past few years.
The vast majority of new cars have this arrow. In older,
arrow-less cars, the hose part of the gas-pump symbol sometimes
indicates the side of the car that has the filler cap. Handy to
know when renting or borrowing cars.