I recall the first time I gassed up: pulled up to the pump, and ah geez: the fill cap was on the far side. So pulled forward, did a 3-point u-turn, headed back in, on the other side of the pumps and...: lord almighty the fill cap's still on the far side. Got it right the third time...
Having two vehicles, with fillers on opposite sides, I find that this sort of brain-fart doesn't necessarily end with the car's first fill. At least the second try almost always gets it.
I remember when gas hoses were long enough to reach BOTH sides of a car parked at the pump. Does that make me OLD ??
My filler's on the right, so that's how I pull up to the pump. I had several gas jockeys here tell me to turn the car around, so the hose will reach, while pointing at the charge port.
I am Brazilian and I have a Prius 2017, I am in doubt. I put 20 liters of gasoline and the Prius shows 520 km of autonomy, but the same use of electric motor of automatic driving, for example: I drive 20 km using more electric motor than the gasoline engine and the autonomy instead of reducing to 500 km to 480 km, I do not understand
I find excitement from the people saying that the Prius does 22km in the city. I do not see much result of economy in the intense traffic.
On my own cars, I'm not going to look at the dash for such an icon each time when pulling up to a pump. My household's fleet is just three, not dozens. When brain farts are involved, a tiny little dashboard icon isn't going to help. In rentals and other unfamiliar cars, then the icon may help.
That range number is only an estimation and a lot of factors can affect it. Only rely on it to guess when you should refuel if you like to push the envelope.
That distance to empty display, or 'km of autonomy' as you labed it, is merely a guestimated forecast, not anywhere close to a precise indicator. It can only assume that your future driving conditions will have the exact same fuel economy as the recently driven distance. That assumption is almost never correct, but the car simply doesn't have any better information. Your 'lost' distance is just (20 km / 500 km) = 4% of the forecast. That is peanuts, as over short distances fuel consumption can easily vary by 50%. As you drive longer distances, and the remaining fuel level declines, the apparent forecast discrepancies should shrink considerably. Therefore, don't overthink this issue, because the displayed number simply isn't good enough for this purpose. I also see that your numbers seem to be rounded to 10km increments. Is this true for the car, are just coincidence? If true, then rounding errors will can account for much of the apparent puzzle.
Since you KNOW that one of your vehicles is different, that little Icon COULD help you in your normal situation too.......if you would just let it.
Old dog, new tricks. Looking for the gas icon (location not standardized) is actually more mental work than simply mentally waking up to remember what brand vehicle I'm in. And looking for the icon takes my eyes off the road, plus some extra time to adjust these aging eyes to the different focus distance, whereas remembering brand does not. And I go to enough fuel stations with hoses long enough to reach either side, so it doesn't matter. Of the nine vehicles that have been in this household in the past four decades (one vehicle at a time when I was single, at least three at a time since coupling), all four Fords and Subarus had the gas filler on the right side, all five Hondas and Toyotas on the left. But only the three 21st Century cars have the icons (that I can remember), while one icon-less 20th Century car is still in our fleet.
Some pickup trucks have had gas tanks on both sides, what a nightmare at a gas station. I don't remember any Fords having gas doors on the right side. I know that little indicator is on the gas gauge but have never used it.
I don't know what happened to that link, I couldn't delete it with my Android tablet and had to use my PC. That was the longest link I have ever see.
Yes, Jalopnik links have been troublesome for quite a while. Try this version: Why Some Cars Have Gas Tank Fillers On The Left Or The Right