At "30 miles to empty
" at best you have (maybe)
2 gallons of gasoline in the tank (and that's spread over the ENTIRE bottom surface of the 36 gallon tank)
. AND that's figuring that the guage and warning system is accurate.
Agree with the dealership ... DON"T LET YOUR FUEL GET THAT LOW.
You do realize that you're not only running-out of fuel, you're also ...
- shortening the life of your fuel pump. *The gasoline cools the fuel pump.
- promoting condensation in the tank (and the fuel).
- in general, stressing the fuel delivery system and engine operation.
- not to mention the incovenience and potentially dangerous situation(s) that you're KNOWINGLY causing.
At the risk of being disrespectful ... Bless their heart, there are some beings that are too stupid to live.
EDIT: Went back and did some ciphering (albeit rough) and determined that at your "30 miles to empty" point, there is less than ½" of fuel covering the entire bottom of your fuel tank. And that's assuming the vehicle is level. That amount is 5% of the total amount of fuel possible.