Fuel tank is suppose to be 37 gallon. i have never put more than 28.5 gallons in the tank. even when i run the tank to the red light or my mileage indicator show 20 or less miles remaining. i have ask the dealership twice about this and they claim is a safety feature so you don't run out of fuel. i run the tank down to 10 miles left in tank and that is when i put 28.5 gallons into it.