24 MPG combined is a middling number, perhaps disappointing to some. But it’s crucial to understand the 2022 Porsche 718 Boxster 2.0L 4-cyl isn’t designed to be a fuel sipper. This is a precision-engineered sports car. The target buyer prioritizes driving thrills over long-distance efficiency, accepting relatively modest fuel economy as the price of admission for open-top motoring and a Porsche crest on the hood.

City and highway performance

The EPA estimates the 718 Boxster’s 2.0L turbo-four will achieve 21 MPG in city driving and 27 MPG on the highway, when paired with the quick-shifting seven-speed dual-clutch automatic (AM-S7). These figures reflect the car’s character. Stop-and-go city conditions will always challenge turbocharged engines; the highway figure benefits from the transmission’s ability to select taller gears, reducing engine RPMs at cruising speed. Expect the real-world highway number to fluctuate significantly based on driving style. Gentle, consistent inputs will reward you with mileage closer to that EPA estimate, whereas frequent bursts of acceleration will quickly degrade it.

Annual fuel cost

The EPA estimates the annual fuel cost for the 2022 Porsche 718 Boxster 2.0L to be $2,400. This calculation is based on driving 15,000 miles per year and using national average fuel prices. This cost serves as a useful benchmark, but individual expenses will vary depending on local fuel prices and personal driving habits. Push the car hard regularly, and you will likely exceed this estimate. Drive conservatively, and you might spend less. Regardless, this annual fuel cost is a fundamental element in understanding the overall cost of 718 ownership.

Real-world expectations

Enthusiast vehicles like the 718 Boxster rarely achieve their EPA estimates in normal driving conditions. The temptation to use the engine’s power and the chassis’s agility is simply too great. Expect a combined MPG figure closer to 20-22 MPG in daily driving. This is not a commuter car; it’s a machine designed for spirited backroad adventures. The numbers on the window sticker take a back seat to the experience behind the wheel. Explore 718 MPG across all years.

How it compares

The 718 Boxster’s fuel economy lands it in a specific niche within the sports car world. A BMW Z4 M40i, with its more powerful inline-six, achieves an EPA-estimated 25 MPG combined. While only a slight increase from the 718, it shows that more power doesn’t necessarily mean a bigger penalty at the pump. The Mazda MX-5 Miata, the perennial champion of affordable roadsters, boasts a significantly better 30 MPG combined with its manual transmission. While the Miata offers a similar open-air experience, it lacks the Porsche’s prestige and its mid-engine handling dynamics. Buyers cross-shopping these cars understand these trade-offs. They’re accepting compromises in some areas to over-achieve in others. For those interested in more information, browse all Porsche fuel economy data.

Tips to maximize efficiency

Pay attention to tire pressures. Correctly inflated tires reduce rolling resistance, improving fuel economy. Check your tire pressures regularly and adjust them to the recommended levels listed on the driver’s side door jamb.

Use the car’s driving modes intelligently. The 718 Boxster offers various driving modes that adjust engine mapping and transmission behavior. Selecting “Normal” or “Eco” modes softens throttle response and encourages earlier upshifts, prioritizing fuel efficiency over outright performance.

Anticipate traffic flow. Avoiding hard acceleration and braking conserves fuel. By looking ahead and anticipating changes in traffic conditions, you can maintain a steadier pace, reducing unnecessary fuel consumption.

Avoid unnecessary idling. Idling consumes fuel without covering any distance. If you anticipate being stationary for more than a minute or two, switch off the engine to save fuel.

Keep the car properly maintained. Regular maintenance, including oil changes, air filter replacements, and spark plug inspections, ensures the engine is running optimally, maximizing fuel efficiency. A neglected engine will always be less efficient than one that is well maintained.