Spanish phrase
¿Con cuánta gasolina debo ~?
Meaning
How much gas should I have ___?
When to use it
Asks how much fuel is needed before setting off. Used to request advice about short versus long trips; neutral polite tone.
Example dialogue
¿Con cuánta gasolina debo salir mañana?
How much gas should I have when I leave tomorrow?
Si vas cerca, con la mitad del tanque basta.
If you're going a short distance, half a tank is enough.