TIL that next to a car dashboard's gas icon, there is an arrow that always points to the side the gas cap is on

https://6abc.com/gas-tank-indicator-prices-road-trip-tips-summer-trips/2145777/

https://www.reddit.com/r/todayilearned/comments/155mkkt/til_that_next_to_a_car_dashboards_gas_icon_there/