74 MPG combined is a remarkable figure, especially considering the 2022 Toyota Mirai XLE achieves it without burning any gasoline. This isn’t a typical hybrid or even a plug-in hybrid; it’s a hydrogen fuel cell electric vehicle (FCEV) where electricity is generated onboard by combining hydrogen with oxygen. This car appeals specifically to buyers interested in lower fuel costs who are willing to work within the constraints of hydrogen fueling infrastructure to achieve near-zero emissions driving. The Mirai makes a statement and offers a glimpse into a potential future of motoring, and, for a select group, its fuel economy justifies the purchase.

City and highway performance

The EPA numbers reveal a slightly higher MPG rating in city driving (76 MPG) compared to highway driving (71 MPG). This is often the case with electric vehicles, including those powered by hydrogen fuel cells. Frequent stop-and-go traffic allows the Mirai to recapture some energy through regenerative braking, boosting its efficiency in urban environments. On the highway, the car relies more on sustained hydrogen consumption to maintain speed, explaining the slight dip in efficiency at higher speeds. Remember this isn’t gasoline MPG, but rather MPG-equivalent. Its performance is still great!

Annual fuel cost

The EPA estimates the annual fuel cost for the 2022 Toyota Mirai XLE at exactly $709. This figure is based on driving 15,000 miles per year and using the national average price of hydrogen fuel for the calculation. However, understanding this number in the real world requires consideration. The price of hydrogen can fluctuate significantly depending on your location and the specific fueling station. Also, Toyota often provides substantial hydrogen fuel credits with the purchase or lease of a Mirai, effectively reducing or even eliminating this cost for the first few years of ownership. This makes the ownership experience more financially predictable and offsets some of the initial investment.

Real-world expectations

While the EPA estimates provide a useful benchmark, real-world fuel economy for the Mirai can vary based on several factors. Driving style, terrain, and ambient temperature all play a role. Aggressive acceleration and frequent hard braking will decrease efficiency. Similarly, driving in colder weather can reduce range as the vehicle uses more energy to maintain cabin temperature. But the most significant factor is the availability of hydrogen refueling stations. The limited infrastructure requires careful trip planning, and “fuel range anxiety” can be a real concern for Mirai owners. However, for those with convenient access to hydrogen, the car can deliver very consistent and impressive fuel economy numbers. Don’t forget to carefully review MIRAI MPG across all years before your purchase.

How it compares

Compared to other zero-emission vehicles, the Mirai’s fuel economy stacks up well and the fact that it is hydrogen fueled makes all the difference when considering how you’ll be “fueling” it. The Hyundai Nexo, another hydrogen fuel cell SUV, achieves a similar combined MPG rating of 61. But the real competition comes from battery electric vehicles (BEVs). A Tesla Model 3 Long Range, for example, has an EPA-estimated combined MPGe of 132. However, for buyers concerned about charging times and range anxiety, the Mirai offers an alternative. Refueling the Mirai with hydrogen takes only a few minutes, similar to filling a gasoline car, while charging a BEV battery can take considerably longer. The deciding factor often comes down to access to hydrogen fueling infrastructure versus the availability of EV charging stations. And of course, compared with conventional gasoline vehicles, the savings are significant.

For buyers who drive a conventional sedan getting around 25 MPG, the Mirai offers a huge step forward in efficiency and emissions reduction. You can see further data and analysis by checking out all Toyota fuel economy data.

Tips to maximize efficiency

Anticipate traffic flow and maintain a smooth, steady speed whenever possible. Avoid aggressive acceleration and hard braking, as these actions consume more energy. The Mirai’s regenerative braking system helps to recapture energy during deceleration, but maximizing its use requires a mindful driving style.

Use the Mirai’s Eco mode, which optimizes car’s performance for maximum efficiency. This mode reduces throttle response and adjusts other settings to conserve energy. While it may slightly reduce performance, it can significantly improve fuel economy, especially during city driving.

Pay attention to tire pressure. Proper inflation reduces rolling resistance and improves fuel efficiency. Check your tires regularly and inflate them to the manufacturer’s recommended pressure, which can be found on the sticker located on the driver’s side doorjamb.

Minimize the use of auxiliary features such as air conditioning and heating, as these can consume a significant amount of energy. When possible, use the seat heaters instead of the cabin heater, as they are generally more energy-efficient. In warmer weather, park in the shade to reduce the need for air conditioning.

Plan your trips strategically to minimize unnecessary mileage. Combine errands and choose routes with less stop-and-go traffic. Also, take into account the location of hydrogen fueling stations along your route to avoid running low on fuel and experiencing range anxiety. The Mirai is an excellent vehicle when viewed under the right circumstances.