2022 Toyota GR86 MPG: EPA Claim for Budget Sports Car Underestimated

2022 Toyota GR86 MPG

Typically, fuel economy tests that report numbers like the Toyota GR86 mpg get decent fuel economy results. For example, a similar, but much heavier, Ford Mustang EcoBoost is claimed to get 32 mpg on the highway by the EPA with a super low ratio 10-speed automatic. However, when the EPA performed their test of the Toyota GR86 fuel economy, they claimed the lightweight, two-door sports car to only achieve 27 mpg on the highway.

At first, one would think this result of the Toyota GR86 mpg is understandable due to the high final drive ratio of 4.10:1 which in turn makes the crank spin faster than 3,000 rpm at highway speeds. However, Daily Motor’s test found, in real-world conditions with 35% city driving factored out, the GR86 gas mileage to come to a much more reasonable 32 mpg on the highway.

Those who worried about fuel consumption during their research of the GR86 and BRZ; fret not. Hit the link to compare to compare the automatic Subaru BRZ mpg! If you’re a true purist and want to daily this sports car and even take it on a road trip, you can expect about 390 miles and smiles of range between 12.4 gallons worth of fuel fills.

But What If I Want to Swap a 4.30:1 Ratio?

For the Toyota GR86 fuel economy nerds out there, like the author of this piece, read on here to find how a slightly higher rear-end ratio affects your wallet on a daily basis. First, we performed an initial test with TheTopher‘s personal BRZ(which is the same mechanically as a GR86) while equipped with a stock 4.10:1 ratio. That test churned out an identical number, if not slightly better, than our GR86 test. Nice to know our number is validated by our own testing!

After swapping out the 4.30:1 rear differential and repeating the same test, our Christopher Brower found the BRZ/GR86 fuel economy to decrease slightly, by our reasoning, by only 0.3 mpg. If you want a little more pep with a slight fuel economy decrease then swap out the rear end to make a 4.30:1 Toyota GR86!

Watch Our Test of the Toyota GR86 Fuel Economy

How We Test the Toyota GR86 Gas Mileage

Daily Motor‘s real-world highway fuel economy test of the Toyota GR86 mpg consists of over 50 miles of consistent highway driving. We fill this little sports 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. The lowest octane fuel accepted by the vehicle’s manufacturer is used during our test of the Toyota GR86 fuel economy. We then drive 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 test of the Toyota GR86 gas mileage 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 of the Toyota GR86 mpg 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 vehicle. Thanks for reading our Toyota GR86 mileage test!

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