I have a 2022 Hyundai Santa Fe limited. It’s supposed to have a 18.8 gallon tank but every time I fill up I can’t fill more than 14 gallons and get a range over 345 miles.(I usually show under 40 miles left on the tank). I expected a larger range than this as its very frustrating how often I have to fill up. Anyone else have this problem or know why it’s happening?

 

First of all, the 40Miles is about a gallon & a half. Once you reach “empty”, you should still have another gallon & a half or more left. Take a gallon of gas with you, & empty your gas tank. Then use the gallon to get you to a gas station. Best way to beat the fear of running out of gas, is to know in truth, how much gas you have remaining when you actually reach the “empty” mark.
I did the above & one of my small cars had 70miles of range left, AFTER it reached “empty”.