Porsche 718 MPG by Year
Here's the official EPA Porsche 718 MPG for every model year from 2020 to 2025.
718 MPG by Year and Version
The EPA has rated 91 configurations of the 718. Pick a year to see each engine and drivetrain.
| Version | Engine | Transmission | Drive | City | Hwy | Combined | EPA |
|---|---|---|---|---|---|---|---|
| 718 BoxsterPremium Gasoline | 2.0L 4-cyl | Auto (AM-S7) | RWD | 21 | 27 | 24 | View |
| 718 CaymanPremium Gasoline | 2.0L 4-cyl | Auto (AM-S7) | RWD | 21 | 27 | 24 | View |
| 718 BoxsterPremium Gasoline | 2.0L 4-cyl | Manual 6-spd | RWD | 20 | 25 | 22 | View |
| 718 CaymanPremium Gasoline | 2.0L 4-cyl | Manual 6-spd | RWD | 20 | 25 | 22 | View |
| 718 Boxster SPremium Gasoline | 2.5L 4-cyl | Auto (AM-S7) | RWD | 19 | 25 | 22 | View |
| 718 Cayman SPremium Gasoline | 2.5L 4-cyl | Auto (AM-S7) | RWD | 19 | 25 | 22 | View |
| 718 Boxster GTSPremium Gasoline | 4.0L 6-cyl | Auto (AM-S7) | RWD | 19 | 24 | 21 | View |
| 718 Cayman GTSPremium Gasoline | 4.0L 6-cyl | Auto (AM-S7) | RWD | 19 | 24 | 21 | View |
| 718 Boxster SPremium Gasoline | 2.5L 4-cyl | Manual 6-spd | RWD | 19 | 24 | 21 | View |
| 718 Cayman SPremium Gasoline | 2.5L 4-cyl | Manual 6-spd | RWD | 19 | 24 | 21 | View |
| 718 Boxster GTSPremium Gasoline | 4.0L 6-cyl | Manual 6-spd | RWD | 17 | 24 | 19 | View |
| 718 Cayman GTSPremium Gasoline | 4.0L 6-cyl | Manual 6-spd | RWD | 17 | 24 | 19 | View |
| 718 GT4 RSPremium Gasoline | 4.0L 6-cyl | Auto (AM-S7) | RWD | 15 | 19 | 16 | View |
| 718 Spyder RSPremium Gasoline | 4.0L 6-cyl | Auto (AM-S7) | RWD | 14 | 19 | 16 | View |
718 MPG Over the Years
Each bar shows the range of combined MPG across every 718 configuration the EPA rated that year, from the thirstiest version to the most efficient. Hover or tap a year to see the numbers.
Years When 718 Fuel Economy Changed
The 718's ratings stay flat for long stretches. These are the model years where something changed enough to matter when you're comparing used ones.
- 2021: The top combined rating rises to 24 MPG, up from 19 MPG the year before.
How the 718 Compares
The EPA rated 16 two-seaters for 2025. The best 718 version, at 24 MPG combined, ranks 4th of 16. Combined ratings in the class run from 9 to 29 MPG, with a median of 18. Plug-in hybrids and electric models are ranked separately.
| Rank | Model | Combined |
|---|---|---|
| 1 | Mazda MX-5 | 29 MPG |
| 2 | BMW Z4 | 28 MPG |
| 3 | Toyota GR Supra | 27 MPG |
| 4 | Porsche 718 | 24 MPG |
| 5 | Nissan Z | 22 MPG |
What Does a 718 Cost to Fuel?
Pick a 718, then enter your gas price and how much you drive. The math uses the EPA city and highway ratings, weighted by how much of your driving happens in each.
718 MPG Questions
Which 718 year gets the best gas mileage?
The 2021 to 2025 718 Boxster holds the top EPA rating at 24 MPG combined (21 city, 27 highway).
Why doesn't my 718 match the EPA numbers?
EPA ratings come from standardized lab tests so every car is measured the same way. Your results depend on speed, climate, idling, cargo, tire pressure and upkeep. The ratings are best for comparing one car against another. To track your own numbers, try the MPG calculator.
Keep Going
Where These Numbers Come From
This page was built by Cedrick Reese from the U.S. EPA fuel economy dataset on fueleconomy.gov, which holds 91 ratings for the Porsche 718 from 2020 to 2025. Each row in the table links to the matching EPA vehicle record, so you can check any figure against the source. When the EPA posts an updated file with new model years or corrected ratings, this page is rebuilt from it. The cost calculator uses the gas price you enter rather than a national average, so the result fits where you live.
Ratings on this page come from the EPA file downloaded on October 1, 2026.
Sources
- Download Fuel Economy Data, fueleconomy.gov, U.S. DOE and EPA
- Factors that affect fuel economy, fueleconomy.gov