Mine says "10 miles" right now and I will fill up on the way home from the office. But I would like to pump 20 gallons
each time I fill up if possible (to maximize my discount, of course). I wonder if it's possible? (I almost always fill 20 gallons on my minivan, once I even got over 23 gallons in!)
The fuel tank capacity on the Genesis sedan is 20.3 gallons. Driving the car to empty "to maximize discounts" is a bad idea for several reasons:
First, the fuel gauge isn't always accurate. In fact, how precise your car's gauge is relies on a variety of factors, including your driving style and your car's fuel economy. According to experts, you should consider it more as an estimate -- rather than an exact measurement -- of how far you'll make it before running out of gas.
Plus, allowing the level of gas in the tank to run low can damage your car:
According to YourMechanic.com, "if you do run out of gas, you can do damage to your catalytic converter, which may then need to be repaired or replaced."
On top of that, according to Consumer Reports, the gas in your car "acts like a coolant for the electric fuel-pump motor, so when you run very low, this allows the pump to suck in air, which creates heat and can cause the fuel pump to wear prematurely and potentially fail."- The repair could cost a couple hundred dollars -- more than what it would have cost you to fill up the tank. Also, CR says "if there is dirt in the fuel tank, it could lead to blocking the fuel filter" -- leading to another expensive repair of a few hundred dollars.
In addition to potentially costly repairs to your car, driving on a low tank can be dangerous. If the car suddenly stops running, you could be stranded in a deserted area, or in the middle of a busy highway. And with many cars, the airbags don't deploy if the car is turned off, putting you, and any passengers, in an even more dangerous situation.
If you want to save on fuel costs, driving a Genesis Sedan is a bad idea, since it has terrible gas mileage compared to almost anything else in this segment. Saving a few cents at the pump when you purchase a $50,000 car sounds ludicrous to me, especially when you take the items above into consideration.