How to find your gas cap without getting out of the car

When you pull in to a gas station, especially in an unfamiliar car, you are often stuck with making a decision about which side of the car needs to be adjacent to the pump, before you get out of the car. It's a fifty-fifty shot, but if you get it wrong, you have to start the car back up and make an awkward maneuver to get to the other side of the pump, disturbing all the other people who are trying to get gas for their cars. If it's especially busy, you might miss it altogether.

Since I like to blog about how-to things, this is going to be in that category, I suppose. My boss just got a new Lexus LS 460 with all the bells and whistles such as bluetooth to link to your cell phone, built-in navigation and calendar which presumably syncs with your phone calendar, and more (it can literally parallel-park itself), but she was wondering which side the gas fill was on, so I pointed out something that I've know for a while, but not everyone knows. I think they should teach it in driver's ed. Anyway, on your fuel gague inside the car, there is an icon of a gas pump. That icon serves a dual purpose. First, it tells you that the meter you are looking at is indeed the fuel indicator, but it also tells you which side of the car the fuel filler is. There will usually be an arrow, such as this:

but also it might just be on a certain side of the gague, which is still an indication:

In both of these cases, obviously, you want the gas pump on the left side as you pull in, because the cap is on the left side of the car. This has been a part of most cars since at least the early nineties, so you can guess that it is probably true of your car too. I haven't looked back at older cars to see if it is true for them too, so tell me in the comments what is the oldest car for which this works, and the newest car for which it does not work.