According to Quicken Loans, the average size of a vehicle’s petrol tank is 12 gallons. The fuel tanks of larger vehicles can carry up to 16 gallons, while the smaller tanks are approximately 9 gallons. Frequently, gasoline tank capacities are specified in owner’s manuals and on manufacturer websites.
In 2011, the Honda Accord and Toyota Camry were equipped with 18.5-gallon fuel tanks, while the Toyota Prius had an 11.9-gallon tank. Depending on consumption and miles travelled, larger fuel tanks require less frequent refilling. Car review websites, such as Edmunds.com and Cars.com, provide the ability to compare fuel tank capacities. The gasoline tanks of larger cars, such as SUVs and minivans, are larger, whereas electric vehicles lack fuel tanks.