How much gas is needed for a 4 hour drive?

The amount of gas needed for a 4-hour drive depends on the vehicle's fuel efficiency and the average speed of travel. For example, if you're driving at an average speed of 60 miles per hour, you would cover approximately 240 miles. If your vehicle gets 25 miles per gallon, you would need about 9.6 gallons of gas for the trip. Always consider factors like traffic, driving conditions, and your vehicle's specific fuel economy for a more accurate estimate.