In most cars, the low-fuel light generally comes on when you have less than 50 miles of fuel range left.
What you need to remember is that even though technology keeps improving, it’s still always better to err on the side of caution when it comes to how much fuel you keep in your tank. You never know when you’ll have to run an unexpected errand or, when traveling, whether a gas station will be available right when you need one.
Your best bet is to always keep your gas tank at least one-fourth full. During storm season in your area, it would be wise to keep it closer to a half a tank, especially if traveling in a remote location.
And occasionally calculate your miles per gallon to cross-reference with your car’s reading.
To calculate your miles per gallon, fill up the car, drive a number of miles, refill the car, and divide the number of miles you drove on your trip computer by the number of gallons of fuel it took to fill the tank. This basic math will give you miles per gallon.
