How much gas will it take for a 1680 mile trip?

It really depends on the type of car you are using and its fuel efficiency. Generally speaking a 1680 mile trip could take anywhere between 20 to 35 gallons of gas depending on the car. To give you a better estimate here are a few examples of fuel efficiency of different types of cars:

• Compact sedan (e.g. Honda Civic): 33 miles per gallon
• Mid-size sedan (e.g. Toyota Camry): 29 miles per gallon
• Full-size sedan (e.g. Ford Taurus): 25 miles per gallon
• SUV (e.g. Ford Explorer): 20 miles per gallon
• Minivan (e.g. Honda Odyssey): 22 miles per gallon

Using the above examples if you were to drive a compact sedan you would need approximately 51 gallons of gas for the 1680 mile trip. On the other hand if you were to drive an SUV you would need approximately 84 gallons of gas. You may want to factor in additional gas for unforeseen stops or detours during the trip.