The 2020 Mitsubishi Mirage G4 gets 37 MPG combined. While this isn’t particularly inspiring compared to hybrid vehicles, it’s a strong number for a non-hybrid subcompact sedan. The Mirage G4 is designed to be affordable and economical, not sporty or luxurious, and that 37 MPG is central to its appeal to budget-conscious buyers.

City and highway performance

The Mirage G4’s EPA fuel economy ratings break down to 35 MPG in the city and 41 MPG on the highway. These numbers reflect the Mirage G4’s small 1.2L three-cylinder engine and its continuously variable transmission (CVT). The CVT is programmed to keep the engine in its most efficient range, especially at lower speeds. City driving benefits from the car’s light weight and responsive throttle mapping at low speeds. On the highway, achieving 41 MPG requires a gentle right foot and an understanding of the CVT’s behavior. Aggressive acceleration will rapidly diminish fuel economy, as the engine strains to overcome aerodynamic drag. The forgiving highway MPG suggests that this vehicle has relatively little resistance and that its tiny powerplant can cruise efficiently at a sustainable speed limit, resulting in better fuel economy. Drivers who drive predictably will see better fuel economy.

Annual fuel cost

The EPA estimates the annual fuel cost for the 2020 Mitsubishi Mirage G4 at $1,200. This figure is based on driving 15,000 miles per year and assumes national average fuel prices. It’s a standardized calculation designed to allow consumers to compare the fuel costs of different vehicles. The actual fuel cost may vary for someone driving significantly more or less than 15,000 miles annually, or living in an area with significantly higher or lower fuel prices. Still, $1,200 per year is a great figure for buyers prioritizing low operating costs.

Real-world expectations

While the EPA ratings provide a useful benchmark, real-world fuel economy can vary depending on driving habits, road conditions, and maintenance. Owners who prioritize fuel efficiency and drive conservatively can often meet or even exceed the EPA estimates. However, those who frequently drive in stop-and-go traffic, accelerate aggressively, or neglect basic maintenance may see lower numbers. The Mirage G4’s small engine is particularly sensitive to driving style, so smooth acceleration and anticipating traffic flow are key to maximizing fuel economy. Drivers who pay attention to the vehicle’s economy will benefit.

How it compares

The Mirage G4’s fuel economy is a significant selling point, especially when compared to other vehicles in its class. For example, the Nissan Versa, another popular subcompact sedan, achieves around 32 MPG combined. The Kia Rio gets roughly 33 MPG combined rating as well. While these are both excellent automobiles in the same subcompact class, they don’t get as many miles per gallon as the Mirage G4’s 37 MPG rating. Even when considering slightly larger and more expensive compact cars, the Mirage G4 holds its own. The Honda Civic, with its base engine, achieves 33 MPG overall. For buyers who prioritize fuel economy above all else, the Mirage G4 is a good choice compared to all Mitsubishi fuel economy data, or simply comparing the MIRAGE MPG across all years.

Tips to maximize efficiency

Consistent tire pressure is critical for maximizing fuel economy in any vehicle, but it’s especially important in the Mirage G4. Check your tires regularly—at least once a month—and inflate them to the recommended pressure listed on the sticker inside the driver’s side door. Underinflated tires increase rolling resistance, which forces the engine to work harder and consumes more fuel.

Avoid aggressive acceleration and braking. The Mirage G4’s small engine is most efficient when operating at a steady pace. Smooth acceleration and anticipating traffic stops can significantly improve fuel economy. Try to maintain a consistent speed on the highway, and avoid sudden bursts of acceleration to pass other vehicles.

Reduce unnecessary weight. Carrying extra cargo in the trunk or backseat adds weight to the vehicle, which reduces fuel economy. Remove any unnecessary items from the car to lighten the load. Even small reductions in weight can make a noticeable difference over time.

Minimize idling. Letting the engine idle for extended periods consumes fuel without moving the vehicle. If you anticipate being stopped for more than a minute or two, turn off the engine. The Mirage G4’s engine is relatively fuel-efficient, but idling still wastes gas.

Consider using the air conditioning sparingly. Air conditioning places an extra load on the engine, which reduces fuel economy. On mild days, consider opening the windows or using the ventilation system instead. If you do need to use the air conditioning, set it to a moderate temperature and avoid using it on the highest setting.