Maybe instead of recalibrating the low fuel indication, there is something wrong with the fuel sending unit that needs service?
My was defective because it read too high. Wallythacker's may be defective because it reads too low.
Gauge is different because they seem to be a better reflection of what is in the tank. Plus I like the low warning dash light compared to the blinking bar.
View my fuel log 2019 Mirage ES 1.2 automatic: 38.8 mpg (US) ... 16.5 km/L ... 6.1 L/100 km ... 46.5 mpg (Imp)
Zero, 2014 ES Plus 5MT, written off but not forgotten.
Zero II, 2014 SE, 5MT, climate She's HOME now!
Shelby AKA "Cute", 2017 ES 5MT, A/C.
Mirage owners look at the world differently than everyone else, but in a better way
We're driving the Beetle of the 21st century, the greatest small car now available!
View my fuel log 2017 Mirage ES PLus 1.2 manual: 39.0 mpg (US) ... 16.6 km/L ... 6.0 L/100 km ... 46.8 mpg (Imp)
If my gauge wasn't accurate, I would be less impressed I guess. Not sure why anyone would have dealer check this, unless you knew you had a problem? Just pay attention to it. If I am down to two bars, I may be adding about 6 gallons of gas. It's just a ballpark figure.
When my fuel gauge starts blinking, I'm estimating that I have roughly 1.25 to 1.5 gallons (4.7 liters to 5.6 liters) of gasoline left. Since I've owned mine, I've never had to fuel to gallons, ever. Which is a good thing I guess. I haven't really tested it to see how much it can go until the tank is empty but I'm sure the Mirage can touch 400 miles on a single tank if all the planets align correctly and if ALL the conditions were working for me, haha! But really, the first few months of owning it, I was sort of surprised that it only too 7 gallons to fill it up...then I remembered "duh, its a warning" and its actually a 9 gallon tank, not a 7 gallon tank. lol
View my fuel log 2015 Mirage DE 1.2 manual: 43.4 mpg (US) ... 18.5 km/L ... 5.4 L/100 km ... 52.1 mpg (Imp)