As gas prices rise, the 2021 Toyota Prius mpg result advertised by the EPA instantly becomes very appealing to commuters. Fuel prices are straining drivers with an average in some states well over five dollars per gallon of gasoline. This makes real-world tests like ours even more necessary. The EPA incorporates 35% of city driving behaviors into their highway numbers, so what is the Toyota Prius gas mileage when driven strictly at highway speeds?
After the test, our Toyota Prius fuel economy number came to 52 mpg on the highway. The EPA advertises 50 mpg for their highway test of the Toyota Prius mpg which pleasantly surprised us to get just shy of 53 mpg. The Toyota Prius has an 11.3 gallon fuel tank so when 52 is multiplied by 11.3, you can expect a highway cruising range of 580 miles. Chances are you or your passengers will need a break before you need to fill up again. Read our test of the Toyota Camry Hybrid MPG or the Hyundai Sonata Hybrid MPG to see how the Prius compares to heavier family sedans!
On another note, there are other trims you can choose which increase or decrease the Prius’ gas mileage despite it having one of the best hybrid fuel mileage numbers ever. For northern climates, the Toyota Prius AWD-e is engineered with an electronic all-wheel drive system simply adding an electric motor to the rear axle. The added weight does hurt fuel economy though it only sacrifices three mpg for the city and highway numbers. If our Toyota Prius gas mileage number isn’t enough then you can purchase the Toyota Prius Eco which achieves 3-4 miles per gallon more judging by the difference shown by the EPA’s tests of the Toyota Prius mpg.
Watch Our Test of the Toyota Prius Gas Mileage:
How We Test the Toyota Prius Fuel Economy:
Daily Motor‘s real-world highway fuel economy test of the Toyota Prius mpg consists of over 100 miles of consistent highway driving. We fill this hybrid car using the “three-click method,” meaning running the gas pump on super fast flow until it clicks, waiting ten seconds, running low flow until it clicks again, waiting another ten seconds, then running low flow one last time. We use the lowest octane fuel accepted by the vehicle’s manufacturer. We then drive 50 miles on public highway in one direction and then back in the opposite direction, attempting not to draft or drive aggressively. We set the cruise control during our Toyota Prius gas mileage test at a GPS-indicated 73 MPH in an attempt to achieve a moving average speed of 70 MPH over the entire test. Upon return to the gas station, we refill at the same gas pump as the initial fill using the same method. Miles per gallon is determined by dividing total miles traveled by fuel consumed. In cases where our observed figure differs greatly from the vehicle’s indicated figure and/or EPA’s estimate, we may recommend a number in between or plan to retest the Toyota Prius fuel economy.